Does "free will" exist?

My answer:

As with my answers to many other philosophical questions, my answer is, "It depends on what you mean by 'free will'." We do have free will in the sense that we can make decisions "for ourselves" (using our own brains), but we don't have free will in the sense that the state of our brains is the product of our genetics and environment. So, "Yes and no".

Lindybeige - Free will

 - summary: "No, we don't have free will, but that doesn't change anything." IIRC this is basically what BF Skinner says.