@Fil Albuquerque,
Kennethamy and Zetherin - You have made various statements in reply to my posts, but I am having difficulty in putting them all together to form a coherent picture. It is like a jigsaw puzzle with ill-fitting and/or missing pieces. I am not even quite sure whether you are fully in agreement with each other. So let me ask some specific questions:
1. Please re-read the OP. Do you accept prothero's distinction between (strong)
determinism and (weak)
causality? The former
excludes chaos theory and quantum mechanics (and is therefore presumably false), while the latter
includes them. Note that this is a different matter from the distinction between "hard" and "soft" determinism. As prothero pointed out in post #5, the OP did not concern the question of free will.
2. Do physical laws (plus indeterminacies if applicable) entirely explain our choices and actions?
3. I am puzzled by your claim that not all causes compel. By this you seem to mean that the cause (or joint causes) of a human choice were not sufficient to make that choice inevitable. Is that what you are saying? If so, it seems to violate the Principle of Sufficient Reason.
4. Regarding kennethamy's restaurant example, I ask again: Why did you
agree to your friend's suggestion? What was the
cause of your acceptance? (Never mind whether causes compel.)
5. If "hard" determinism is as absurd as you seem to think, how do you account for the fact that it is a serious philosophical position?