... The issue is the ability to otherwise under precisely the same circumstances. ...
... Yeah, still unrelated to the issue of free will, the ability to have done otherwise. ...
... Control within a deterministic system? A system that doesn't entail the ability to do otherwise, determinate actions are fixed and unchangeable. ...
...and fixed outcomes - no possible alternative ...
...entailing possible alternatives in any given instance, to have done otherwise. ...
So, where does the notion of "an ability to have done otherwise" come from? It comes from the context of uncertainty. The best way to keep things straight is to consider this simple reminder: "When we are uncertain what
will happen, we imagine what
can happen, to be better prepared for what
does happen".
For example, we're driving down the road and we see a traffic light up ahead. The light is currently red. But
will it remain red, or,
will it turn green by the time we get there?
We don't know. Our context is
uncertainty. We
cannot say for
certain what
will happen.
But we
can say for
certain what
can happen. The light
can remain red and the light
can turn to green. Both of these are
real possibilities. However, only
one of them will be the single
actuality. We just don't know yet which one that will be. So, just to be safe, as we get closer to the traffic light, we slow down, in case it remains red. But then, as we arrive, it turns green. So, we resume our speed and drive through the light.
If someone were to ask us, "Why did you slow down?", our answer would be "Because the light
could have remained red". This "
could have" refers to the fact that "the light
can remain red" was true earlier, and "
could have" is simply the
past tense of "
can". If "this
can happen" was ever true in the
past, then "this
could have happened" will forever be true in the
future.
Now, if our passenger in the car is a hard determinist, he may insist that, "There was never a real possibility that the light could have remained red, because it was causally necessary, from the time of the Big Bang, that the light would be green." And he asks again, "So, why did you slow down?" How are we to answer? The only way to answer is to explain to him,
repeatedly and
in excruciating detail, the difference between something that "
can" happen versus something that "
will" happen.
Something that "
will" happen will
certainly happen. But something that "
can" happen may happen, or, it may
never happen. And when we say that something "
could have" happened, we are always logically implying that it
definitely did not happen. And that reflects the truth of the situation with the traffic light. When we say it "
could have" remained red, we are confirming that it definitely
did not remain red. So, our use of "
could have" remains a truthful and accurate depiction of what actually did and did not happened.
So, how does this apply to free will? Well, free will is when we decide for ourselves what we will do, while free of coercion and other forms of undue influence (significant mental illness, hypnosis, manipulation, authoritative command, etc.). Free will is simply a freely chosen "I will". What
Every
decision happens in a
context of uncertainty. "
Will I choose A or
will I choose B? I don't know yet, I'm still
uncertain". All I know for
certain is that "I
can choose A" is true and that "I
can choose B" is also true. Either of these
can happen, but I don't know yet which one
will happen. So, let me think about it. I imagine the likely outcome of choosing A. And then I imagine the likely outcome of choosing B. At this point it seems to me that A is the better choice. So, I
will choose A, even though I
could have chosen B.
Both "I
will choose A" and "I
could have chosen B" are true statements of fact. One implies that "I
did choose A" and the other implies that "I
did not choose B".
So, that's how these two separate notions, "
will" and "
can" actually work in the real world. We cannot conflate or confuse them without screwing things up.
Now, what are the implications of this distinction to the
definition of determinism? Well, it turns out that the traditional saying that "determinism means that you
could not have done otherwise" is actually
false. What the definition should say instead is that "determinism means that you
would not have done otherwise".
If it is necessary that "I
can choose A" and "I
can choose B" must be true in order to actually begin to make a decision, then there will always be an "I
will choose A" and an "I
could have chosen B" whenever a choosing event appears in the causal chain. Both are guaranteed by causal necessity and logical necessity.
To wrap up, this actually makes a lot of sense: People naturally object when told that they "
could not have chosen otherwise", because they saw the "I
can choose B" happen right in front of them, and thus conclude logically that "I
could have chosen B" must also be true. And they are not having an illusion. They are simply
using the words correctly.
But people would be less likely to object if told that they "
would not have have chosen otherwise" under the same circumstances. After all, if they had good reasons for choosing A, then why would they choose B? Something would have to change, perhaps new information, before they would choose B instead of A.
Prof. Richard Taylor -Metaphysics said:
''It is unimportant whether one's resolutions and preferences occur because an ''ingenious physiologist'' has tampered with one's brain, whether they result from narcotics addiction, from ''hereditory factor, or indeed from nothing at all.'' Ultimately the agent has no control over his cognative states. So even if the agent has strength, skill, endurance, opportunty, implements, and knowledge enough to engage in a variety of enterprises, still he lacks mastery over his basic attitudes and the decisions they produce. After all, we do not have occasion to choose our dominant proclivities.'' - Prof. Richard Taylor -Metaphysics.
No, professor Taylor. It is very very
important to distinguish between cases where someone is tampering with a person's brain versus a person's own choice without such manipulation. You are destroying a meaningful distinction with a meaningless abstraction. So, knock it off, prof. You really should know better.