Question: Is free will merely an illusion? While I dislike the idea that we're just puppets of physics and natural law, I wonder whether our seemingly "free" decisions are actually determined by the combination of our biology and our environment. After all, if our brain is merely a physical and chemical system, how could any any decisions be made freely? Wouldn't that violate natural law? In essence, how can our knowledge that the physical universe is deterministic be reconciled with our subjective feeling that we choose our actions?

Question: Is there objective evidence for free will? After doing some research on free will and determinism, the existence of free will seems pretty unlikely to me – even though the thought of free will is comforting. An argument often used to refute determinism is that the determinist says that we should accept determinism, since on his view, he only advocates determinism because he's determined. That seems unsatisfying, however, since that doesn't prove the existence of free will. Also, even if each person can say of himself, "I have free will," how do you determine whether others have free will? How would you know whether a toddler, a teenager, a person with a brain tumor, or a person with dementia has free will or not?

Question: Do our genes affect our reasoning? Evolution makes fruit taste sweet and burning human flesh smell awful. Presumably, evolution can hard wire pleasures and pains because interaction with that thing has caused our ancestors to live longer or die earlier. Wouldn't this same process make certain actions easier or more difficult, such as sacrificing yourself to save your child versus watching your child die? Couldn't evolution affect that decision by making focus more difficult, so that a person is easier impelled by his immediate emotions?

Question: How do you validate free will? For example, if a man is hungry and he values his life, then wouldn't his eating be predetermined?

Question: What is your opinion of evolutionary psychology? For example, a recent study claims that there is a gene for being a political liberal. Or another claim is that studies show that women are "hypergamous" in that they are "wired" to seek out the most "socially dominant" men that they can find in the "sexual market". What is your opinion on all this?

Question: How are causality and free will compatible? If my mind is an effect of my brain, and my brain is a complex physical system which operates in a deterministic way, doesn't that mean that my thoughts and actions are ultimately determined, too? What is wrong with the popular notions of causality and free will that make them appear incompatible?