@kennethamy,
kennethamy wrote:Are you seriously saying that I could not have jumped three inches into the air just because I did not jump three inches into the air.
You are making this into something which it is not. We are talking about free will, not modal logic. Which is fancy, but not the topic at hand.
You could have decided to jumped three inches into the air. The question is not whether doing it excludes not doing it, that is pretty obvious, but not relevant.
The question is
why you would jump into the air. Or rather, why you would decide to jump into the air. Your position is that you can decide to do anything you are physically able to do out of free will. But my point is that whatever you do is the result of the stimuli you were confronted with, not your internal choice.
There is no purpose for jumping into the air, it serves no purpose, except showing that you can decide to do it, proving that you have free will. The reason you would decide to jump into the air would be to prove that you can in fact decide to jump into the air, because you talked about jumping into the air and wanted to prove that you can. I.e. the stimulus that makes you jump into the air is you having talked about jumping into the air on the internet. Which means you didn't decide it out of "free will", but your action is a reaction to stimuli you were confronted with. Just as a stone that is dropped from a tower can not 'decide' to fall in any way different than is causally determined by it's mass, the wind direction etc. If you had not talked about free will on the internet, you would (could) not have jumped into the air, because you would not get the idea to do so. Just as you did not get the idea to make pudding today or write a letter to the president of Canada. Neither of these actions is a reaction to the stimulus you were confronted with.
As for your claim that it's not fallacious to expect me to prove a negative, I will for the sake of the argument take the extreme of your position; that free will exists and that even stones have free will. And I want you to prove that this is not the case. They do fall from towers, roll down hills, thus it is prima facie clear that stones make decisions and this they have free will. And you have the burden of proof that they do not.