So, a perception of free will rather than an actual causal free will. I can give you that, but it won't do you any good. An illusion that really looks and feels like reality? Sounds like Iacchus's dreams...
What I'm proposing is a shortcut, not a philosophy.
If you can't determine with a almost flawless degree of certainty that it is perception of free will rather that the actual ability to make choices based on availablity and perception, then how can you differentiate between them? Sure, you might find out that what you thought was a choice had at least an element of environmental control, but so what? Even if you manage to herd all those worms back into the can, you will just open other cans.
I'm not arguing that this isn't worth studying, but just that we need something to describe the effect of what feels like free will. If you insist on calling it "the illusion of free will", then fine. It will make it more difficult to talk about it in a casual way. You'll have to explain yourself every time you use the unweildy phrase.
I don't know that I can agree to this. The number of useful choices you have is too often determined by your environment.
That would be the word "available" in my definition. If your environment is such that certain alternatives are not there, then they are simply not able to be chosen.
As is how much you know. Your choice to place the action inside the individual is understandable, but misguided.
Certainly you admit that choices are often based on the individual's history, biology and preferences. If that's not "inside the individual", then where is it? Even if you are conditioned to hate coconut because you choked on some as a kid,
that conditioning is part of you, the individual. The events may be external, but the memory is all yours. You're not choking on coconut when you make the choice to avoid it. You just rememember it.
And what determines which things you will remember and which you will forget? Certainly repetition helps (as Wall Street has discovered), but it is certainly not the only factor.
We can manipulate the environment, but there is no magic switch we can throw to make somebody instantly know more.
Instantly? No. Quickly? yes. That's why many restaurants give samples to assist you in your choice.
Even if it feels, experientially, like what you describe is free will, it is not at all a useful illusion. (well...that's not quite true. It is useful in that promoting this view makes people more attuned to the consequences of their actions, and this allows us to control them in that sense.)
Which sounds to me like it is an extremely useful illusion. Knowing the consequenses of your actions doesn't mean you are being controlled. In fact, the more you know, the more capable you are of making a better choice, not just for yourself, but for others.
The funny thing about (the illusion of) free will is that the more you are aware of it, the less subject you are to control. Those who feel that they "have no other choice", really are setting themselves up to have no other choice, even though others in the same situation might perceive additional, even better choices.