[PokerAmateur4]

Piers,
I don't follow. You seem to say "Free will exists, because the illusion of free will should come from evolution." Maybe you can evolve the illusion of free will, but I don't see how what you said proves anything about actually having free will.

Valenzuela,
"Free will implies that having made a choice, it is always possible that one might have chosen otherwise.
If its not possible that one could have chosen otherwise then there is no freewill.
My question to those who believe on free will, how could I have chosen differently?"
That's how I feel. Defining free will in a meaningful way seems to be difficult. I think defining determinism is helpful to do first. I like the definition that:
"there is at any instant exactly one physically possible future"

So all your choices and thoughts are to be, even before you are born.

I agree with the above, as I don't see how anyone can explain to me how a given scenario had the ability to come out differently. Also, if there are probabilities assigned to each outcome, I still don't see that as meaningful, or what I personally would consdier "free" will, as it's just random probabilities and prior circumstances.