>Do you believe there is ever a situation where person A could have not done action B?
If A actually did B, no.
>Because my problem with the concept of "choice" is that if it exists then person A could have chosen to not do action B and exercised his free will.
I disagree. Choice has nothing to do with free will.
>If there is no free will though, person A could never have chosen not to do action B, therefore he really had no choice in the matter to begin with.
I disagree.
>That's why I've been arguing that the concept of choice is just an illusion.
If your concept of choice involves free will then I don't want anything to do with it. I gave my awesome definition already ;_;
>Oh, and in answer to your question, yes I agree that an apple falls to the ground because of an attractive force between bodies of matter known as "gravity."
Awesome.
>I think saying that statements are "either true or false", about the future or anything else, is far too simplistic.
I think it's perfectly valid and necessary to make sense of reality. If existing things are something specific, then claims about them, if they make sense, must be true or false. If reality can be in some 'undetermined' state then... things get messy.