Determinism as Necessary for Morality
by Chris Cogan (Copyright 2005)
Feedback, discussion, comments, questions: Chris Cogan, ccogan@ou.edu
The
basic idea here is to show that indeterministic free will is incoherent,
outright harmful to any serious concept of moral responsibility, and confused,
and that there is a straightforward alternative theory that does not entail any
of the problems that the theory of indeterministic free will entails. In order
for our choices to be our choices, they must be determined by us, by what
we are. Therefore, any breakdown in deterministic causation at the point of
choosing is a breakdown in the relationship between us and our choices that
makes them our choices. There can be no moral responsibility for uncaused
events.
I
found, after writing the first draft of this essay, that Daniel C. Dennett had
said many of the same things in Elbow Room: The Varieties of Free Will Worth
Wanting. Our respective views are so similar that Dennett and I seem to
have undergone a process of parallel evolution. Nevertheless, my own
formulation here is far shorter than his book (which, itself, is not a long
book), and it is also far different in formulation in most respects, so even
someone who has read the book may find slants and perspectives and connections
here the he may not have gotten from the book. Even though I have not yet
finished reading his book, I think I can safely recommend it as further reading
for those who are interested in further development of some of the ideas I've
covered only briefly below.
Also,
I'd like to note a common reversal in argument, which is the tack of arguing,
in effect, that indeterministic free will has to be assumed because it is
needed for morality. The main problem with this view is that we cannot
rationally argue for a factual claim merely because we want it to be true, or
even if we need it to be true. Fortunately, we don't need
indeterministic free will to be true. In fact, we need it to be false.
I
say this despite the hint of this fallacy in my own title for this essay. Though
I regard determinism as necessary to morality, I don't argue for determinism on
the basis of any moral ideas. My use of moral ideas is mainly to show that a
rational deterministic theory does not (luckily for us) invalidate rational
ideas of freedom or moral responsibility. I do this because I know full well
that, even if people found my logical and metaphysical arguments apparently
sound, they would still hesitate to accept my views in this respect if they
still felt that indeterminism was necessary for morality. People would be
unreasonable to do so, at least if they fully understood the argument and
accepted the argument, but I know from experience that they would still do
this. Ironically, this is a form of determinism that my theory does not imply but
which I have seen too often to deny: People are often determined by
their belief in the moral necessity of indeterminism to reject determinism.[1]
Intuition
Pitfalls
Intuition
is only reliable when it has a "knowledge-base" to work from, when
that knowledge-base itself is adequate to justify the ideas that intuition
supplies, and when the habits of thought that the person habitually applies
with respect to that knowledge are adequate. If any of these conditions is not
met, then, no matter how true an idea based on intuition seems to be, there is
a really good chance that it is not true. Even if these conditions are met,
there is still a good chance that the idea is not true.
Many
principles of physics, mathematics, economics, probability theory, and philosophy
are, at least for most people, counter-intuitive. But they are true in spite of
that. Reality blithely disregards our beliefs about it, no matter how much we
may feel that they are true, and reality has not the slightest concern with
adjusting itself to make our intuitions and faith-based beliefs true of it.
This
means it is up to us, not reality, to ensure that our ideas and beliefs
match reality. Reality will, as a whole, makes no active contribution to
ensuring that our beliefs are true of it. It will, sometimes, let us know in
dramatic ways when one or more of our beliefs is wrong, but, even then, we have
to figure out which belief or beliefs are wrong, and sometimes it
"tells" us about our errors by killing us. Obviously, using death as
an epistemological tool in this way is not usually very practical. Sometimes
reality seems to tell us that a belief is true when in fact it isn't. This
doesn't mean that we cannot learn the truth about reality, but it does mean
that we cannot rely on our guesses and intuitions with respect to many
philosophical issues, because our intuitions are based either on insufficient
data, or on what we have been taught, and so on.
We
cannot trust intuition and our feelings in any sort of global and uncritical
way. Ultimately, we need a rigorously rational basis for our beliefs,
especially those that clearly have a major effect on how we live our lives.
Also,
in general, as we grow up we tend to classify things, tend to conceptualize
things, in terms of whatever concepts and ideas seem handy or plausible, not
necessarily in terms of how we would classify or conceptualize if we were, say,
attempting to prove a mathematical theorem or develop a principle of
theoretical physics that other physicists wouldn't just laugh at. That is, as
normal human beings growing up in the world, we tend to conceptualize in a very
informal and even casual way, and we tend to accept whatever way of formulating
something seems plausible to us, and that we don't immediately see any problems
with.
One
example of this kind of conceptualization is the old belief in the flatness of
the Earth. If those around us do not specially inform us about the shape of the
Earth, and if we have not for some reason put forth considerable thought, the
flatness of the earth seems obvious. After all, when we just look out towards
the horizon, we don’t see the Earth curving down away from us. Indeed, from our
perspective on the ground, hills and buildings in the distance that happen to
be taller than we are might suggest that the Earth curves upward.
At
one time, the flatness of the Earth was assumed by most ordinary people because
such flatness is easy to conceptualize and imagine, and because people mostly
didn't have or notice evidence of overall curvature, or, generally, have any
special reason to do so in their daily lives. How much need for knowledge of
the Earth's shape would a European serf have?
My
point in warning you that intuition and faith are commonly unreliable in
certain areas and under many conditions is that parts of what I'm about to say
may seem severely counter-intuitive to you, especially at first, but I hope you
will try to hold off on flatly rejecting it until you have a better sense of
how it all hangs together and what it means and why I say it.
Misconceptions
about Determinism
Fatalism
One
common misconception of determinism associates determinism as such with what is
better called fatalism, or the idea that one is somehow "fated" to
perform some action regardless of what actions one takes to prevent oneself
from performing that action. Thus, if one is fated to kill his parents, it
doesn't matter if he moves to another continent to avoid any such possibility;
something will somehow put him in a situation where he kills his patients. But,
this view of determinism is clearly mistaken. Outside of literature, most
notably in some plays by some Ancient Greeks, we don't see this kind of thing
happening. The point here is simply that, while this would be a kind of
determinism, it is not determinism in general, it is not the only kinds of
determinism we can imagine or conceive of.
Compulsion
The
other main misconception about determinism is that, if we are determined to do
something, then we must be compelled to do it, such as by a strong
emotional impetus, or an obsession or psychological compulsion. This form of
determinism is like fatalism in that it makes suppositions about the kind
of determinism that must be the case if we do in fact act deterministically.
But this supposition is unjustified; determinism as such has absolutely no
implications at all to the effect that deterministic actions must be somehow
"forced" on us, if only in a psychological way.
Misconceptions
About Indeterminism
Both
of the main misconceptions about indeterminism are reflections of the above
misconceptions about determinism, so they only need to be briefly described
here.
Rejection
of Fatalism
Sometimes
a person claims to be an indeterminist because he supposes that determinism
must be fatalistic and he has rejected fatalism and therefore infers that he
must also reject determinism
Rejection
of Compulsion
Sometimes
a person claims to be an indeterminist because he supposes that determinism is
necessarily a claim of psychological compulsion. Since he sees that we do not
always act on compulsion (and that is implausible to argue even that we secretly
always act on compulsion), he claims to be an indeterminist merely because he
rejects this "compulsive" view of human action.
Both
of the views described here depend on the corresponding misconception about
determinism, in that, in each case, the term "indeterminism" is
applied because of the rejection of determinism as misconceived in one of the
two ways described, rather than because of a well-considered and detailed understanding
of determinism as such which has led the person to see it as unacceptable.
In
fact, two of the main reasons people are reject determinism is because of such
misconceptions. Sadly, this applies even to many philosophers, who really ought
to know better.[2]
What
Determinism Is
Determinism
is simply the view that, whatever happens, it is somehow caused to
happen. As such, it makes no suppositions at all as to what the causes must be
("the gods" or some sort of compulsion, for example), and absolutely
no suppositions as to what must be caused, and, finally, no suppositions
as to the specific causal processes occurring in the world. Determinism assumes
causation, not fatalism, not compulsion, and not magic. Determinism is
really nothing more than the recognition of the nature of causation as being
the way things in reality "express" what they are, their identities.
For
example, spherical things act differently from cubical things; that's how we
can tell them apart. They reflect light differently, they block the view of
what's behind them differently, the reflect sound waves differently, they
produce different sensations when touched, the roll (or don't) along the ground
differently, and so on. That is, with respect to the particular facts of things
that exist in the real world, what they are is simply what they "do"
and what they "do" is what they are. We need two different ways of
talking about things for conceptual and communicational reasons, not because
the causal behavior of a thing is supposedly somehow distinct from its
identity.[3]
The only means we have of knowing anything specific about things in the world is via causal relationships, because all of our sense organs depend on physical interactions. Even when we infer some fact about the world form other facts, we are still depending on causal relationships. If we infer from the explosion of a building that a friend is dead because we know he was in the building at the time, we are still using causal relationships, but merely in an indirect way. There is no way around this: If we want to know something about the real world, we simply must make use of causal relationships. There is nothing about the real world that we can know that we don't know of via causal relationships of some kind.
Why mention this? Because some have argued against determinism on the grounds that things might be one thing and yet act like something else entirely. This view assumes that there is some very bizarre disconnection or distinction to be made between what a thing is and what it does. My remarks above are intended to show (or at least indicate) why this cannot be true.
One of the implications of this idea that what a thing is is what it "does" (where what it "does" may include nothing more than passively continuing to exist) is that we can never, on an observational or logical basis, suppose that a thing might do something other than whatever it does in fact do. This is because not only is a thing's identity whatever it does, but whatever it "does" is also its identity. There is no identity above and beyond whatever it "does" in this sense. What would such an identity be? How could we ever know of it? Suppose we have a cube of solid iron, and someone suggests that there is more to this particular cube's identity than what its identity as a cube of iron would imply or comprise. Suppose it's claimed that the cube of iron also has an "invisible" identity as a sphere of ice, such that, if left on a smooth slope in the hot sunlight it could roll down the slope and also begin to melt into water. Would we be wise to support this claim? Anyone want to make a real-world bet that this could happen?
I imagine not. Why would we refuse this bet? Because a cube of iron is not a sphere of ice. We might convert the cube of iron into a sphere of ice, of course, by dismantling its atoms and reassembling the subatomic particles as water molecules, but that's irrelevant to the claim that a cube of iron also might also have an identity as a sphere of ice.
Now, it is, of course, true that we don't always (or even ever) know all of the facts of a thing's identity, but this doesn't mean that any of the facts of a thing's identity can ever be facts that are logically incompatible with what we do know, and it doesn't mean that we can suppose that a cube of iron may arbitrarily act like a sphere of ice (if an object really and truly acts like a sphere of ice, then it's simply false that it is a cube of iron at all).
A
complete cause for an event or effect is the entire causal context present at
the time of the event that produces that event. But, the complete cause
for the causing of any one event is incompatible with the complete cause for
the causing of any other, incompatible event. For example, if a complete cause
is such that it will cause an object to move to the left, this is incompatible
with the complete cause needed to cause that same object to move to the right.
What this means is that the complete cause for the case where the object will
move to the left is such that it prevents the object from moving to the
left (obviously, moving to the left is not compatible with moving to the right
at that time). Similarly, the complete cause for moving to the left prevents
the object from moving to the right. If it doesn't prevent it, then it cannot be
sufficient to cause the object to move to the left because it might still move
to the right.
Put
in other terms, supposing that something (take your pick as to what; the logic
here is absolutely universal) may truly do either of two different and incompatible
things at a single time is to suppose by implication that there are two
mutually exclusive complete causes present at that time, and that, even though
they are in fact such that either will prevent the other from existing, neither
of them does prevent the other from existing. This is a fairly obvious
violation of the law of identity and the law of non-contradiction, since, by
definition of either, the other cannot occur at the same time.
Let
me close this section by proposing a paradigm case for determinism: Suppose the
entire universe were exactly duplicated by God so that, even an infinite
degree of precision of knowledge about every particle and photon could not
distinguish any difference between them. Suppose they are both kept causally
isolated, from each other and from all other outside causal influences. Then,
what strict determinism implies is that, even after trillions of years have
passed, these two universes will still be absolutely identical, down to
the last detail. And, under determinism, this would be true of even an infinite
number of such duplicated and isolated universes. This is quite a lot to claim,
but notice that it does not imply any form of fatalism or of compulsion
in any particular human actions. In particular, it does not imply that a person
who chooses to go to the drugstore for aspirin for a headache is unfree in any
morally meaningful sense merely because his exact "Doppelganger" in
the other universe is making the same choice at the same time.
What
Would Indeterminism Be?
Since
I flatly deny the possibility of indeterminism, I have titled this section
" What Would Indeterminism Be?" rather than "What is
Indeterminism?" Given the thought experiment of the duplicate universes
above, probably the clearest and quickest way of indicating the nature of
indeterminism would be to say that, if indeterminism were true, we could not,
in general, suppose that even just two exactly identical universes would still
be exactly identical after the passage of some amount of time. That is, indeterminism
would allow that the two universes might actually diverge in some way at some
point. If someone agrees that two such initially identical and isolated
universes would necessarily remain identical until at least one of them was
interfered with in some way, then that person is not advocating a theory
of true indeterminism, but merely something like unpredictability due to the
impossibility of gaining adequate knowledge. On the other hand, a person who
agrees that two such initially identical universes could not diverge in some
way over time, is actually holding to a theory of determinism even if he
describes himself as an indeterminist (oddly, it sometimes actually happens
that a person will describe himself -- perhaps in other terminology -- as an
indeterminist and say that the two universes would not in fact diverge).
Just
as determinism may come in many "flavors," so may indeterminism. Some
indeterminists suppose it to apply only to the behavior of subatomic particles;
others suppose it to apply only to some choices of human beings.
And
some really only mean that they are not fatalists or believe in determinism as
compulsion, under the assumption that determinism simply is fatalism or
compulsion. I will only point out here that this is a basic conceptual mistake,
and does not affect the basic issue of determinism at all, since both strict
determinists and indeterminists can agree that fatalism is not true and that we
are not always acting under compulsion. The real issue with respect to determinism
itself is strictly a matter of causation as such, and the real issue with
respect to morality is what freedom is.
That
is, while indeterminism as non-fatalism and as non-compulsion does not suffer
from the contradiction of indeterminism argued above, such indeterminism is
actually misnamed and is actually compatible with strict determinism, at least
when it is not supposed that non-fatalism and non-compulsion imply true causal
indeterminism as well.[4]
What
is Freedom?
The
idea of indeterministic free will is a staple of the philosophical ideas of
Western Civilization. In fact, it is so much a staple of our philosophical
ideas that the phrase "indeterministic free will" would be typically
regarded as a redundancy, because free will is normally defined in terms
of indeterminism. This idea is especially popular with Christians, who claim
that, if we are not free in some absolute, indeterministic sense, then we are
not responsible, and we need to be responsible so God can punish us for all
eternity if we choose wrongly and reward us for all eternally if we choose
correctly.
Indeterminism
itself is formulated in terms of absolute openness of alternatives, such that,
when something is acting indeterministically, it is possible that it could have
done at least one other thing than what it did, some other thing that would be
incompatible with what it actually did do. Indeterministic freedom defined this
way requires that a person have been able to do something other than what he
did in fact do. The advocate of indeterministic free will will claim that one
can't actually be free if one could not have done something else at the time
one is supposed to have free will.
However,
this view of freedom, aside from the incoherent theory of causation involved,
has the problem of being silly as well. Suppose you come to an intersection and
you want to go to the right because that's where the store is that you want to
go to, and you also think that going to the right is the right thing to
do, so you go to the right. According to the indeterminist, you would not be
free in this case if you could not have gone to the left instead, even though
you have no reason to go to the left, and you don't want to go to the left. Do
you have a sense of a lack of freedom when you turn to the right, even though,
given your values, your knowledge, and your goals, you could not have turned to
the right?
No,
because freedom doesn't depend on alternatives in the sense that prior to
considering situation (maybe you hadn't yet decided that you needed to go to
the store), you would have seen the intersection as offering two alternatives
for turning (let's suppose it's a "T" intersection), but, as soon as
the relevant facts come to mind and are adequately processed, you lose the
alternative of turning to the left. You could go to the left if you
chose to, of course, but, given your knowledge and understanding and your
goals, you can't choose to go to the left. If your knowledge (etc.) were
sufficiently different, you would have chosen to go to the left, but
that would be a different situation, so the ability to choose that
option under those conditions is irrelevant to your current situation.
But,
there have been, even since early Greek philosophy, some brave souls who had
trouble with this view of free will that requires the possibility of such
contra-factual choices. Some of them, being more brave than philosophically
insightful, have simply accepted the idea that free will, if it is real at all,
must be indeterministic and have consequently simply denied the occurrence of
free will. Others, in my opinion the more insightful, have recognized that
there is no reason to accept a definition of free will that's arbitrary and
baseless, and have sought to define free will in a way that makes it compatible
with determinism. People who hold this view have come to be known as
compatibilists, even though compatibilists may not agree on much else about
free will or human choices and actions. This essay can be regarded as, among
other things, a defense of compatibilism.
The
indeterminist seems to be getting confused between how we may experience a
situation before we have chosen an alternative with the situation at the time
when a choice is actually made. Before we have realized that we need to go to
the store, we may view the "T" intersection ahead as offering two
equally acceptable alternatives, such that we are, let us suppose, indifferent
to which way we turn. But, as soon as we realize that we need to pick up some
items at the store and we realize that that's what we really want to do, and no
counter-considerations of any significance have come to mind at the moment when
we actually must choose, then it is false that we could have chosen to
go to the left, and yet, as we turn to the right with the blasé aplomb, with no
sense at all of being unfree.
I
hold that this is the correct approach, that there is what we can properly call
free will, but that it doesn't require or depend on any form of true causal
indeterminism, and that, in particular, it only depends on acting on our
judgment.
Responsibility
Another
step to be taken is to consider what responsibility requires. If there are
situations where we are truly free in the sense of being free even from our own
judgment, then, whatever choice we make in those situations is not really our
choice. It is, instead, something that just happens to us. Whenever
there is a causal disconnection of the kind required by indeterministic free
will, there cannot be moral responsibility. If, were you a deterministic
being, you would definitely choose not to steal given an opportunity to steal,
then, if we modify your basic metaphysical nature so you will now choose indeterministically
to steal or not to steal, then your choice is, to the extent of such
"freedom," disconnected from you, disconnected from your
judgment, disconnected from your character.
Such
disconnection is, to say the least, not a basis for moral responsibility. In
fact, it is, by itself, tantamount to a denial of responsibility.
When
people say that free will must be indeterministic, they are typically trying to
have their moral responsibility and deny it too, because, though they don't say
so, what is really leading them to claim that free will is necessary for moral
responsibility is not indeterminism, but rather a freedom from classes
of determinism that invalidate responsibility. They use the concepts or the
terminology of indeterminism, but, in imputing responsibility to the moral
agent for his free will choices, they are also saying that his choices
did in fact, and despite their earlier disclaimers, emanate from the person
himself and that these choices are therefore not indeterministic.
This
contradiction is inherent in the usual ideas of free will, which amount to a
kind of package deal fallacy, because, while one idea is explicitly stated,
another idea must "packaged" with it and accepted along with the
first idea in order to save moral responsibility.
The
result is a contradiction that can never, even in principle, be resolved as
long as freedom is supposed to be both truly indeterministic (not merely
deterministic in a special way) and we are supposed also to be morally responsible
for our choices.
If
our choices are indeterministic, we cannot be responsible for them. But if we
are to be morally responsible, our choices must be determined by us, by
what we are, by our judgment, and must not occur in an indeterministic
way.
All
of these problems disappear if we adopt both a rational deterministic idea of
free will and a concept of moral responsibility that rests on it. We then still
have other problems about moral choices, but all of these problems exist under
indeterministic ideas of free will, so we gain nothing as far as dealing with
these issues by reverting to an indeterministic view of free will. And, in any
case, most of them are not fundamental problems of morality, but are more in
the nature of technical difficulties arising from the complexity of human
nature and human action and from lesser conceptual confusions that I want to
avoid dealing with here.
The
basic idea is that we have free will to the extent that our choices emanate
from our judgment as to what we think is the best thing for us to do, and free
will is lost to the extent that our choices are determined by compulsions
and/or external forces (such as someone threatening to kill us if we don't
steal).
I've
already suggested that we cannot be responsible for indeterministic choices
because, by definition, they cannot be our choices. If they are our
choices, they are determined by us, and are thus no more indeterministic
than an ordinary pocket calculator (though the processes involved are a lot
more, well, involved, of course).
We
can't even have our indeterminism and eat it too by supposing that there is
something indeterminate about us just prior to a free choice. If there
is, then that is not under our control, and it is not something we can
be responsible for. Suppose that, just before some choice, a beam from a
Martian's ray gun passes through your brain and produces a modification of it
such that some aspect of your brain is now indeterminate in nature, such that
it is no longer possible to predict, even with God-like omniscience about the
present state of your brain and mind, whether you will choose to steal or not
to steal in the next moment.
Would
we be responsible for choosing either way in such a case? No, because the
indeterminate aspect of our brain would not really be a part of us. It would be
like an intrusion from outside, negating the conditions of moral responsibility.
Responsibility
would return only if there were some sort of "settling" that removed
the indeterminateness and left us in a specific state. But, if that were to
happen, then we are back to a deterministic context in which the issue of
responsibility depends on our character (and, even so, since a person would,
presumably, have no way of knowing that his brain had been corrupted by an
outside force, his responsibility would be limited). There is no point to
responsibility if there is no good correlation between what we are and our
choices and actions, and, since an outside force caused the change in the
person's brain in this hypothetical case, the person cannot be immediately
responsible for it or for its consequences.
The
general problem with indeterminism in relation to responsibility applies
regardless of where the locus of the indeterminism is supposed to be. If it
breaks the causal chain between our character and our actions, it invalidates
responsibility. If this break occurs at the exact point of choosing, it
invalidates responsibility. If it occurs, unknown to us, just before the
choice, it invalidates responsibility.
There
is no way around this. There is no way of re-formulating indeterminism so that
it both retains its strict contra-causal nature and allows for
responsibility. We cannot be responsible for anything not under our control and
indeterminism, by definition, invalidates control. If it does this at crucial
times (at the point of choosing), then it invalidates responsibility.
There
is no way of reformulating the issue so as to avoid this problem because it is
a factual issue. It's like introducing a gizmo into a pocket calculator that
randomly modifies calculations on the basis of the detection of decay products
of a bit of some radioactive substance. The parts of the calculator that still
work cannot be "responsible" for the results past the point where one
of these radioactive decay events intrudes, because it has no control over
them. The "responsibility" in such a case then shifts to the nature
of the radioactive material and the causes that trigger decay events. If there
are no causes, if this kind of event is truly indeterministic, as some claim,
then nothing is responsible for the results of a calculation. Thus,
rather than provide a basis for responsibility, indeterminism negates
responsibility to the extent that it is real because it breaks the causal links
responsibility requires.
This
is the point at which indeterminists start implicitly contradicting themselves
if they haven't done so up to this point. This is because, while they are
claiming that we have indeterministic free will, they also claim that we are
responsible, and responsibility requires deterministic causation. Thus, in
order to save their position in spite of their own claims, they have to
”smuggle" in the idea of determinism all over again, but without calling
it such. The have to do this, if they want to preserve responsibility and they
have to "smuggle" it in because explicitly introducing it
would directly contradict the claims of indeterminism that they have already
made.
Thus,
their position, if it is to be coherent at all, and if it were to be explicitly
formulated, would be something like this: We can act on our own character but
we are indeterministically free with respect to compulsions and/or external
causal factors that effectively force us to decide one way or another, even if
we might not decide that way without the compulsion or other factors being
present.
Notice
that this is not indeterminism in any metaphysical sense, but merely a
limitation on the kinds of determinism that we face. They are really
claiming not that indeterminism is true, but that we are not always acting
under the conditions of the kinds of determinism that invalidate free will and
moral responsibility. They are forced into this position of going back on their
initial indeterministic claims because, if they don't, then they cannot justify
responsibility.
But,
because they don't clarify their views enough to force the contradiction out
into the open and then of their position, they end up actually advocating a
kind of metaphysical nonsense because, I suppose, they have gotten so befuddled
that they cannot conceive of any non-metaphysical concept of free will that
will allow for any kind of moral responsibility. This is a mistake, not only
because moral responsibility is perfectly possible in a deterministic view of
free will, but also because it is arguing backwards, from desired results to
supposed facts. We cannot suppose moral responsibility to be real and then
argue backwards from this to some metaphysical conclusion, because moral
responsibility itself is called into question if we haven't already
resolved the metaphysical issues. That is, the proper direction for argument is
from the more basic facts about causation to whatever conclusions about
morality those facts imply, not from the wished-for conclusions back to the
imagined metaphysical facts.
This
does not mean that we cannot refer to the desired conclusions in a rhetorical
way, to help people understand that moral responsibility is not invalidated in
any general way by determinism. Showing that moral responsibility is still
possible helps people make sense of both the metaphysical ideas and moral
ideas. I'm only saying that the logic of proof cannot be from the desired
conclusions about morality to some supposed conclusions about metaphysics. What
this means is that, if the metaphysical facts were such as to invalidate
free will and moral responsibility, then, rationally, that's what we would have
to accept. We would then have to formulate whatever moral theory was still
possible (if any) in the face of such a result. Fortunately, determinism,
properly understood, has none of the horrible implications commonly associated
with it by advocates of indeterministic free will.[5]
I
have already said that, without causal continuity and connection between us and
our choices, we cannot be morally responsible. But this idea can go down hard
for some people because they have a view of moral responsibility steeped in
religious metaphysics. In their view, moral responsibility is not merely the
fact that we are responsible for the nature of our choices and actions if they
are not compelled or externally forced, but rather, for them, moral
responsibility is to some mystical/magical standard of morality deriving from
God or some other similar metaphysical whatsit. This view is characterized by a
deontological cast. It involves the idea that moral responsibility means
adherence not to principles of action aimed at producing good consequences, but
at adherence to some idea of duty that is not based on the
to-be-expected natural consequences of actions. For example, they may hold that
we have an absolute duty to follow the rules laid down by their God in some
book, such as the Koran or the Bible or the Torah, regardless of the
consequences. When this view is taken seriously, it means that even if an
action would destroy the entire universe, if it were according to the rules,
one would be immoral not to take that action.[6]
Under such a view of morality responsibility becomes not making the best
choice one can make for one's values (including other people), but rather it is
a matter of slavishly following rules, rules that either have no basis other
than religious pronouncements in some book, or which are, at best, only
partially justified by rational cognitive processes, and which therefore,
cannot be rationally regarded as rules to be followed no matter what. This view
of moral responsibility assumes that morality is fundamentally contrary to
human needs and human nature, and so, in order to claim that we can be moral in
this sense, we must be free to ignore or discount our actual objective needs as
human beings and act on the basis of rules that are cognitively arbitrary. How
else could we attribute moral evil to a person who boils a kid goat in its
mother's milk? I have no particular idea why a person would want to do that,
but, if one is morally okay with boiling the goat at all, and if it is okay to
use, say, the milk of another goat to boil it in, how can it be a moral
"crime" to boil it in its mother's milk?
Objectively,
this makes no sense, so to hold a person responsible for such actions, we have
to establish a view of morality that ignores reason, and that
just follows the rules.
That
is, free will is regarded as the means whereby irrational moral rules can be
made to seem something that we are "free" to act on, no matter how
stupid and vicious they may be. The idea is that we are free to abandon reason
in order to follow such arbitrary rules.
Well,
in a sense, we are free to abandon reason, in that, if we do in fact
choose to do something irrational, we can often in fact do so. But, the point
here is that the usual Western religious idea of free will is aimed at weakening,
not strengthening, any tendency we may naturally have to act rationally. Once
an arbitrary set of rules is set up and once the idea that some abstract duty
is adopted as the driving premise of morality, then such concepts of free will
and moral responsibility become useful tools in persuading people to abandon
reason in favor of such moral rules.
But
a rational morality has no need for any such rules, and is not based on
any premise of such duty, and so it has no need for any such concept of free
will or moral responsibility. A rational person is morally required to choose
the best action for his objectively based values, including those of his own
remote future, and is thus enjoined by his morality to reduce his choices to cognitive
activities by which he determines, as best he can, what is objectively
the best action to take. For the most part, the choice at the end of this
cognitive process is merely the acceptance of the conclusion to a process of thinking
(most of which may amount to a nearly instantaneous integration of his
knowledge of his situation with his well-established knowledge of his own
objective needs and moral principles based on them). That is, once the person
arrives at the conclusion that stealing is not the best action for him to take,
there is no further difficult process of choosing left, unless there are
several other alternatives to consider. At the end of the process, if all the
supposed alternatives have been considered, the choice has effectively been
made.
This
is because, for a rational person, determining what is morally best is a matter
of integrating an understanding of what best means for him and his knowledge of
the relevant situational facts. It is not a matter of arbitrarily acting according
to some rule in disregard of those same facts.
Once
morality is taken out of the realm of robotic duty to rules disconnected from
reason, the whole issue of free will and moral responsibility loses its aura of
mysteriousness. It becomes simply a natural extension of the idea that we know
actions have consequences and that we can, to a significant and predictable
degree, largely determine what consequences occur by appropriate action. We
then see that moral responsibility is not something imposed on us by some
outside agency, but is rather a simple recognition of the fact of causal
responsibility in a moral context, in a context where values are at stake and
may be gained, kept, or lost depending on how we act.
Free
will also loses its mysteriousness in such a context. No longer do we have to
think in terms of whether we are or are not free to adhere to some arbitrary
rule imposed by some outside agency, but we can now think in terms of whether
there are or are not constraints on our actions that arise from and tend to
misdirect our actions away from what we would choose were we free of those
constraints. That is, we think of free will in terms of whether we are free to
do what we think is best or are somehow derailed from such actions by some psychological
compulsion or some external force such as the really ugly giant with the
machine gun aimed at our head.
Put
another way, when morality itself is properly understood, it provides a context
in which the ideas of free will and moral responsibility make sense when they
themselves are re-formulated to fit the new idea of morality. Responsibility
becomes something we seek rather than something we see as a burden or a
threat to our happiness. Responsibility means that we are in control of some
important aspects of what happens in our lives, and so means that we are not
entirely subject to the whims of circumstances. We could only remove this kind
of responsibility by removing our ability to act in any way that would affect
the condition of our lives in a way that was systematic enough for us to
understand. For example, if we live in a world where it is in fact the case
that our actions simply make no predictable difference at all with respect to
what happens to us, then we would not be morally responsible, but we
would also be totally out of control of our lives and what happens.
But,
under normal views of moral responsibility, it becomes desirable to
avoid it, because avoiding it means avoiding the requirement of acting
according to rules that are formulated in disregard of our genuine and
legitimate needs as human beings. That is, under such views, we have to hope
(and pray, in a sense) that situations will arise in which we can avoid acting
according to the rules and yet not be held morally at fault for doing so. For
example, if there is some absolute rule against eating beans, and you find
yourself in a situation where you must eat the beans or die, then you
will hope for some way to avoid moral responsibility for breaking the rule
about not eating beans, so you can avoid starvation and retain your
moral status.
A
rational moral system makes no such demands. The function of a rational
morality is to clarify and codify the rules and principles and a system of
values you need to follow as the means of living well in the real world
as a human being. This means that, if eating beans is necessary to your
survival, you are allowed to eat the damn beans, no matter what some religious
book says about eating beans. If your wife is dying of some disease and you know
a cure for it that happens to be banned by some religious text, your moral
responsibility is to use the cure.
Moral
problems and moral conflicts still arise, even in the lives of rational people
living according to rational moral principles, but most of the more serious
ones, the ones that give rise to so much social strife, political oppression,
and war, go away. Moral responsibility and human welfare (including your own in
an essential way) coincide in a rational view of morality and moral
responsibility, with the result that there is no living in fear of
morality and moral responsibility, no fear of being free to follow some
arbitrary rule that, at best, will not be the best for your life as a human
being.
This
is one of the reasons I frequently claim that religions of the conventional
kinds are actually incompatible with the fullest development of
morality. Any moral system that requires adherence to rules that an otherwise
rational view of one's situation would not countenance is not a support for morality
but rather a threat to morality, because it effectively drives a vicious
wedge between morality itself and any reason for bothering with morality.
Once
we understand the proper function of morality as something that benefits
our lives instead as something that imposes pointless burdens on us, we find
that the whole idea of a type of free will that is truly indeterministic is not
merely unattractive, but actually something devoutly to be avoided, were it a
real possibility, because any such indeterministic free will would mean a loss
of control over what happens in our lives. We have precious little control as
it is, much less than some people commonly think, but we need what control we
do have, and we don't want to lose it because we one day made an incredible
mistake when afflicted with metaphysical indeterminacy in a crucial moral
choice. Of course, there are all sorts of other things that can cause our moral
choices to go awry, such as brain damage, disease, emotional problems that are
beyond our capacity to cope with, and so on. But, our best chance even for
dealing with these threats to our moral consistency is lucid understanding of
what's going on and action based on that understanding, not some causal
disconnection between us and our actions.
The
Feeling of Freedom
Let's
look a little closer at the feeling of freedom that we experience. What is the
experience of freedom? Is there some positive fact of reality that we perceive
or apprehend, in a way analogous to perceiving the light from a fire? Consider
a person tied up with a rope. He doesn't feel free. Why not? Because his
attempts at movement are constrained in unusual ways. When he tries to move his
hands to adjust his glasses, he can't do it because they are, let us suppose,
tied behind his back. He feels the resistance to his attempted actions as a
loss of freedom, which it indeed is.
Now,
suppose we untie the man. Suppose he comes upon an opportunity to steal from
someone with essentially no chance at all of getting caught. Suppose he doesn't
steal not because of any ropes tied around him, but simply because he doesn't
regard it as a good thing for him to do; he views it as being contrary to his
interests, even though the monetary value of the loot would be very great. He
chooses not to steal.
Does
he feel unfree in this kind of situation? No. Why? Because he doesn't really want
to steal, and so there is no sense of constraints on his actions. If he tried
to steal and was somehow blocked from doing so by the sudden intervention of a
thick iron door, then he would feel unfree.
Why
the difference? Because he is blocked from doing what he has chosen to do.
The
point here is that freedom is what we experience from the lack of awareness of
anything acting against what we have chosen to do or acting against choosing
what is consonant with our what we take to be our best judgment. Freedom is not
something positive. If a ping-pong ball on a pool table is free to roll in any
direction, it doesn't mean that we start with a ping-pong ball sitting on a
pool table and then add freedom of horizontal motion as if it were an
additional object or substance. There is nothing more to the situation of a
ping-pong ball sitting on a table and a ping-pong ball sitting on a table that
is free to move. The freedom of the ping-pong ball is simply an aspect of the
kind of situation it is in, not something we add in to the situation to make it
different from what it would be if we just had a ping-pong ball sitting
on a pool table.
What
this means, in observational or experiential terms is that there is no
experiential or empirical difference between being able to do what we choose to
do and being metaphysically indeterministic in our choices. That is,
indeterminism has no empirically distinguishing markers that enable us to infer
that we are not only free to do as we choose, but that we are free to choose in
an indeterministic manner. In either case, there is not the slightest further
information that we can be aware of.
What
this means is that we simply cannot justify indeterministic freedom on
the basis of our experience, ever. All we can justify, and all we really need
to justify, is that we are free to choose according to our judgment of what is
the best thing for us to do. That is as far as the data will take us because it
is as far as the data can take us. Indeterminism cannot be justified
experientially.
What
is taken as such a justification is simple freedom to act as we choose. That
is, the theory of indeterministic freedom is actually, in a sense, a result of
conclusion-jumping, of accepting one idea as the explanation for our sense of
freedom when a metaphysically much less radical view would work just as well in
explaining the exact same experience. This is very much analogous to the
accepting the idea that the Earth is basically flat on the basis of our daily
experience. Metaphysical indeterminism is a handy idea for classifying our
experience of free choice, and the idea of flatness is a handy idea for
classifying our perceptual experience of the Earth around us. And, it is wrong
for much the same reason. We cannot rationally conclude that the Earth is
flat from such observation. All we can actually do rationally is presume
that the Earth is flat because we see no reason to suppose that it is curved.
Similarly, we cannot rationally conclude that freedom is metaphysically
indeterministic. All we can really do is presume that it is because we don't
perceive or otherwise notice any facts that would tell us that our freedom is
more limited.
Finally,
there is the Occam's Razor issue. In a sufficiently narrow sense, it seems
parsimonious to suppose that our experience of freedom is an experience of
metaphysical indeterminism. But, in another sense, this gives rise to a major
problem, because we know that many things in the world are at least
essentially deterministic. For example, we don't suppose that a nail being
hammered into a board by a carpenter is simply moving into the board
indeterministically, as if it spontaneously took it into its little nail-head to
burrow down into the board. In general, most of the things we see happening in
the physical universe are known to be deterministic.[7]
Thus, we are forced to accept some degree of determinism. This means that, if
we wish to claim that there are exceptions to determinism, we have to accept
the burden of proof of showing that there are these exceptions.
And
this means that, if we don't need to accept indeterminism, if we don't
have specific information or reasoning that forces it on us, we will have a
more parsimonious theory if we retain determinism alone, until some such
specific information or reasoning is found. And unless such information
or reasoning is found; there is no reason to suspect that indeterminism is even
possible, and some that indicates that it is in fact logically impossible, as
was indicated at the beginning of this essay in explaining what determinism is
and implies.[8]
That
is, until someone can prove a genuine cognitive need for introducing
indeterminism into physics or metaphysics, we should strive to do without it
simply as a matter of theoretical parsimoniousness, even if we are not
convinced of the logical impossibility of indeterminism. It serves no positive
purpose in any scientific theory (no, it has no actual uses even in
quantum mechanics, since assuming an unknown determinism will do exactly
as well as indeterminism) and it is deleterious to any rational philosophical
system, since it denies cognition wherever it is posited (since cognition
always depends on the equivalence of causal nature and identity, which
indeterminism denies).
Conclusions/Summary
I've
tried to deal with the idea of freedom, the feeling of freedom, the nature of
freedom, causation, responsibility, and the general nature of morality, all of
which undermine the idea that moral responsibility depends on any kind of
freedom involving a true ability do to other than whatever we do. I think I've
fairly well shown that freedom is simply acting on our judgment rather than
under compulsion, internal or external, so that what we chose to do is what we
choose to do. There is neither factual justification for, nor moral need for,
any kind of freedom beyond this.
Appendix
1: Complete Causation
The
complete cause for an event is everything that must be present or not
present for the event to occur at the time and place where it does occur. By
factors that are not present, I mean those that would prevent the event from
happening. For example, if an orange released above the floor is to drop to the
floor, there must not be a sturdy table in the way. Thus a complete cause in
this case excludes the presence of a table or any other such blockage in the
way of the orange. A complete cause is always exclusive as well as inclusive.
But,
it is inclusive. If the orange is to drop to the floor, there must not
only be no table or other sufficient impediment, but there must also be some
sort of force that causes it to move relative to the floor, such as gravity.
Now,
here's the thing: The complete cause for any one event necessarily includes
sufficient causal factors to prevent all incompatible events. Thus, if
the complete cause is sufficient to cause an orange to drop to the floor, it is
also sufficient to prevent that same orange from rising to the ceiling instead.
In this example, one of the main things preventing the orange from doing
nothing at all is gravity.
Now,
let's suppose that the situation at the time of releasing the orange is
indeterministic. By this, I do not mean that merely our information is not
sufficient to enable us to predict whether the orange will do nothing or fall
to the floor, but that the nature of the situation is supposed to be sufficient
to cause the orange to fall to the floor and sufficient to cause it to
remain motionless. But this is a logical impossibility, because it requires two
mutually incompatible sets of causal conditions. One is the set of causes,
including gravity, that would, if allowed, cause the orange to fall to the
floor. The other is the set of causes, including either a lack of gravity or
some counter-balancing upward force, that would, if allowed, prevent the
orange from falling to the floor.
A
contradiction like this would be required in all cases, not just those
involving oranges being released over a floor. Whenever you have the causal
conditions for one event you must have sufficient causal factors to
prevent any incompatible event. If you do not, then the conditions simply aren't
sufficient to cause the first event.
The
fact that there might be causal factors that, in a different situation, would
cause the orange to fall to the floor is irrelevant to the sufficiency issue if
there are causal factors in the situation at hand to prevent the orange from
falling to the floor. What is sufficient to cause an event in one case may not
be sufficient to cause that event if there are also causal factors that would,
given free reign, produce some other event (or simply prevent the event in
question).
I've
been talking about oranges, rather than humans, deliberately, because the
relevant principles and their application are easier to understand in such
simple cases. However, they apply just as well to human choices and actions.
Oddly, there is a school of thought that says much of what I just said, but
which, when it comes to human choices, makes an about-turn and argues for
indeterminate free will. It's as if they could not grasp that the logic of the
simple case was inherently universal and not open to exceptions. Their view is
that, while things must act according to their nature, the nature of humans is
that they may choose indeterminately. I myself considered this view in my teens
and rejected it almost immediately because the choosing process itself had to
have causes, and so there had to be a fundamentally deterministic process going
on. The law of identity says that things act according to their nature, and only
according to their nature, to what they are, in infinite detail, at the time of
acting. Thus, a human being choosing to do one thing does so, because, at the
exact instant when the choosing process actually occurred, the exact mental
state of the person at the time determined the outcome.
Obviously,
there are many cases (far more than we tend to imagine, actually[9])
when we don't know why we chose to do one thing rather than another, but that's
an issue of knowledge, not of causation. The fact that we are limited in our
knowledge of deterministic causation doesn't change its deterministic nature,
with regard either to humans or subatomic particles. Unpredictability resulting
from ignorance is not the same as indeterminism, because indeterminism would be
a failure of causation, not lack of knowledge.
Appendix
2: The Copenhagen Interpretation of Quantum Mechanics
The
formal theory of quantum mechanics is not indeterministic. It only implies that
certain kinds of deterministic prediction cannot be made, without telling us
why these predictions cannot be made. The Heisenberg Uncertainty Principle
tells us that we cannot obtain the kinds of knowledge that would enable us to
make strictly precise deterministic predictions, but it cannot (even in
principle) tell us that the particles involved are not deterministic, and we
can't obtain this knowledge because of the nature of the particles themselves.
However,
the "Copenhagen Interpretation" of quantum mechanics holds that our
knowledge is not only inadequate for precise prediction, but that physical
reality itself is indeterminate in a metaphysical sense. Observationally, we
can only say that there are, let us suppose, various probabilities of finding
an electron in one of two boxes, but the Copenhagen Interpretation holds not
that the electron is not really in either of the boxes before we detect it
(which would suit me just fine), but that which box it will be found in is metaphysically
indeterminate (meaning that even God-like omniscience about the present state
of the universe would not allow for a reliable prediction).
This
is where I draw the line. It is provable in scientific, experimental
terms, that there is a kind of "information wave" associated with
particles, and that the probability of finding a particle is highest at the
points where this "wave" has the highest amplitude. Why cannot this
wave itself be one of the determining factors in where a particle is
found? We know it's real, so why not accept that fact and go with it? And why
can't the detailed local structure of space itself also be one determining
factor?
Quantum
mechanics cannot possibly tell us that particles are actually indeterministic.
It can't tell us this because indeterminism is not an observational/empirical
fact. We cannot observe that particles are indeterministic, even in principle,
because indeterminism, if it could occur, would not enable us to make any
observations that we could not make under determinism.
The
claim of indeterminism is a universal negative: "There is absolutely
nothing, known or unknown, in all of Existence, that somehow precisely
determines these events." Only universal negatives that have positives
that yield contradictions (either internally or with known facts) can ever be
proved. Since quantum-level determinism does not contradict any known facts
(that is there are no observations that determinism as such would contradict),
and since it is clearly not logically self-contradictory, we could never prove
indeterminism even if it were true. There is a principle that describes the
relationship of determinism, knowledge, and indeterminism:
Indeterminism is indistinguishable
from unknowable determinism.
This
basic formulation is due to Ed Fredkin, though I formulated an essentially
equivalent form of it myself in the 1970's or 80's before learning of Fredkin's
work.
My
own formulation was to the effect that because indeterminism can be emulated to
any degree of accuracy by strictly deterministic means, we can never know when
something is truly indeterministic by empirical means. Both formulations imply
that we can never prove indeterminism because there could always be some
unknown deterministic mechanism. One implication is that, by Occam's Razor, we
should banish indeterminism entirely from physics as being both pointless and
harmful to research (because, once you're certain something is indeterministic,
you stop looking for explanations or explanatory principles).
None
of this is directly relevant to ethics, and I wouldn't even bring it up were it
not for the frequency with which desperate indeterminists, groping about for anything
that can be made to seem to support indeterministic free will, will fall back
on alleged quantum indeterminism as either proving that indeterminism is true
or as providing (via "infecting" the brain with acausality) a basis
for indeterministic free will. The point of this appendix is to support (if not
prove) that there is no help in quantum mechanics for indeterminism in general
or for indeterministic free will in particular.
And,
even if we were thus "infected" with quantum indeterminism, would it
be the good thing such people often seem to think it would be?
Well,
the kind of benefit it would supposedly bestow is only freedom from fatalistic
determinism or determinism by "outside" forces or compulsions. But,
since neither fatalism nor compulsion is implied by determinism anyway, this is
not much of a benefit.
Worse,
it would further weaken our chances of managing our own minds. It is bad enough
that actual causes interfere with our mental functioning and too often
lead us to make poor choices. It would be even worse if there were points in
our thinking where there was a true metaphysical disconnection between our
minds and our choices so that, regardless of what we would rationally choose,
we may still choose incorrectly for no reason at all. If your life or something
of such value depends on choosing correctly, would we want to be free in
an indeterministic sense to choose an obviously incorrect alternative? If you
have a choice of pressing a button that you know would save your life and not
pressing it, would you want to be free in an indeterministic sense not
to press it?
What
would be the point of such "freedom" from our own knowledge, beliefs,
understanding, values, and deepest desires?
As
far as I know, no indeterminist has ever given even a plausible answer
to this question. There is a kind of mentality that would like this kind of
freedom from themselves, but it is a form of mental illness, like that of
Kierkegaard or Tertullian (who is supposed to have said, of his belief in the
resurrection of Jesus, “I believe it because it is absurd” [10]).
It is irrational to wish for such pointlessly destructive
"freedom" from deterministic causation, because such
"freedom" itself would cause more harm than good, except possibly in
decisions where little is at stake. But, such "randomness" can easily
be obtained by flipping coins; we hardly need to have causal indeterminism in
our own brains.
In
short, there is no value to quantum indeterminism, even if it were real.[11]
And there would be a lot of harm to it if it had a significant role in human
behavior.
Feedback,
discussion, comments, questions: Chris Cogan, ccogan@ou.edu
[1] This general form of backwards reasoning is seen also in the idea that we should believe in God because (so the argument goes) God must exist for their to be a basis for morality. The argument is unsound, but, even if it sound to argue that morality requires God as the basis, it would only follow that, if God doesn't exist, then morality is unfounded (or not well-founded, anyway).
[2] I'm using "ought to know better" in a rather casual sense here, so don't let's get into a big debate over what it means or should mean to say that someone "ought" to know something, okay?
[3] That is, we need to be able to talk about the identity of a thing without respect to any particular causal context or type of causal context. We need to be able to say that the picket fence is white rather than make our thoughts and our communication more complicated by saying that the picket fence reflects a sufficient range of visible light frequencies as to appear white to us. That is we need to be able to specify the identity of a thing in the world without explicit reference to some class of causal relations where each fact of the thing's identity would be revealed. But this is a matter of conceptual and mental "economics" and efficiency. It doesn't mean that how a thing in the world acts is in some way factually distinct from its identity.
[4] I think most people who reject fatalism and determinism-as-compulsion also do in fact truly reject causal determinism, but the point of this qualifier is that rejecting either of these forms of determinism does not imply the rejection of determinism as such.
[5] There have been some philosophers (and numerous nihilistic non-philosophers) who have argued that the fact of determinism does invalidate free will and moral responsibility, but these kinds of positions are usually based either more on the person's psychology than ideas, or they are based on rather misguided views of determinism, free will, and moral responsibility. For example, the ideas of determinism that are typically involved are ones that hold that if our actions are merely the result of forces that existed before we were born, we cannot be responsible for them. This requires a concept of moral responsibility that is actually a confused leftover from conventional views of free will and responsibility. Ironically, many such people have "put on airs" of being intellectually sophisticated when in fact they have only inverted some one conventional idea rather than accept the burden of actually re-thinking all of the relevant ideas. And, many such people are motivated by a kind of psychological nihilism or desire to rebel against religion, and they haven't the wherewithal or the motivation to reconstruct morality in a non-religious form, having, typically, gullibly accepted the idea that a morality is, almost by definition, based on religion.
[6] This is one reason why I'm glad not many people take their religious texts very seriously, because, if they did, it would be disastrous for the human race, at least until most such people had either killed each other or been imprisoned or been killed in order to stop them from further killing.
[7] Even in quantum mechanics, we cannot eliminate the possibility of determinism. All we can eliminate is the possibility of certain classes of so-called "classical" determinism. For example, we have not and, by the nature of quantum mechanical theory itself, cannot eliminate the possibility that the actual structure and activity in space itself at the Planck scale is crucially involved in the determination of the results of quantum-mechanical events. There would be absolutely no deviation from known observational results if this were true, and therefore there cannot be any observational way of showing that this is not the case. That is, all of the highly sophisticated formalism of quantum mechanics would still apply to the nth degree, including the phase relationships that were once used as an argument against "hidden variables" in quantum mechanics.
[8] No such information is empirically possible logically possible. The view that indeterminism is a fact of quantum reality is really not a scientific idea at all, but a metaphysical proposition that cannot possibly have any empirical bases. Indeterminism has no empirical implications. It can't cause any observable facts because, by definition, it is the lack of causation. We can never, even in principle, observe that there is no deterministic cause for some event or type of event, because that would be observing nothing. All we can do is fail to observe a deterministic cause (or fail to recognize it, even if we have observed it).
But, not knowing of any causal mechanism is not justification for denying that such a causal mechanism exists, because it is argument from ignorance.
Of course, we can sometimes observationally exclude certain kinds of determinism, just as we can exclude major nuclear explosions as the cause of death of a man found freshly dead in the pantry. But, excluding some particular "brands" of determinism is also not sufficient to justify the conclusion that there is no deterministic mechanism at all. All we can rationally conclude in such situations is that we don't know what's going on. This is why it is not logically possible to justify the unfortunately common view among physicists that subatomic particle behavior is in some ways truly indeterministic rather than merely unknowable in rather special ways.
[9] There is an oddity here: People tend to claim that they know why they did things when in fact they do not, which means that they are in effect admitting a form of determinism (that their action was determined by the motives they have in mind). But, some of these same people will also claim that some their choices are free and indeterministic, meaning that they don't have (sufficient) motivation for such choices. The general nature of their claims in these situations makes sense if we consider that people who claim to know why they do things when they don't are making these claims out of a desire to seem to be acting on a rational or sensible basis (when, in fact, their actions may have been impulsive and based on quite different motives). But notice that wanting to seem to be acting rationally is, by definition, not the same as acting indeterministically. And yet, I'd wager that these people would view both classes of claims as being compatible.
How could this be? I think if we interpret their claims about acting in an indeterministic manner to be their confused way of expressing the view that they were not acting on some form of psychological compulsion, the "paradox" evaporates, because acting in a way that's free from psychological compulsion and acting rationally are logically compatible. It's only acting rationally and acting in a truly indeterministic way that yields contradictions.
But, can we justify our interpretation of their claims about acting indeterministically? I think so, in many cases. Why? Because, when people think of determinism, many don't think of it in a strictly general causal sense, but as necessarily involving some form of compulsion. Most people do not have clear enough ideas of what determinism does and does not involve to be able to properly distinguish between what determinism as such implies and what some particular "brands" of determinism require.
[10] I've just read (at http://phoenicia.org/tertullian2.html (12/18/05)) that this is actually a misquotation, and that what Tertullian actually said/meant was that other people would be unlikely to believe in such a thing if they did not have compelling evidence for it, therefore, the fact that people believed it was evidence that it actually happened (presumably, I suppose, that they had actually seen Jesus after the alleged resurrection). Of course, this would only be a good argument if it was in fact true that people would be unlikely to believe in such a thing without themselves having good evidence for it. If this is what Tertullian actually thought, he was deeply naïve about human nature, and what people are willing to believe absolutely without evidential support. And, even if this were his intended meaning, it would still smell of rationalization.
[11] Some physicists have made claims to the effect that physics can only deal with observations, not with reality itself. Of course, if this were true, then all the more reason for rejecting the claims of indeterminism. Indeterminism is not something we can observe because it has no empirically distinguishing characteristics. Physics assumes that there is a reality beyond the observations, or there would be no point to making the observations and nothing to observe, and absolutely no consistency among observations (and no one to make the observations, either, for that matter). What is true, is that physics cannot concern itself about certain metaphysical questions (though way too many physicists have pretended that certain philosophical claims -- such as indeterminism -- are scientifically justified), but even if (for example) we suppose that we are living in a virtual reality, it is still reality that physics seeks to understand, even if it turns out not to be the kind of reality we normally assume it to be. Even a virtual reality is an objective reality, in that it would have its own laws. And, many of the greatest physicists (even if we don't go back as far as Einstein), have regarded physics as being an attempt to understand reality, not merely as an attempt to organize observations according to equations. I'm not claiming that they claim that the job of physics is to understand physical reality in an ultimate metaphysical sense, only the idea of physics is to do something deeper than merely establish systems of equations that happen to work for relating sets of observations to each other.