I'm new at philosophy (not so new at physics though), I mean, I haven't read much about it, so please bear with me if I'm asking something obvious. A couple of days ago I realized that assuming humans obey the laws of physics we know so far, there's no place for free will. Free will is something hard to explain for me, so I'll ellaborate a little more on my idea, and hope you (and I) understand what I mean by free will. Suppose you have to make a decision on something anyone would think can make a decision, for example, when choosing what to eat at a restaurant. The desicion you take must be the result of some physical phenomena in your brain (assuming we make our desicion with our brains), these physical phenomena obey the laws of physics we know so far, and so you don't really choose, you just evolve as a system under certain constraints. I know that we cannot predict the evolution of a system such as the human brain, and for what I've read (which isn't much) there's some relation I don't understand about not being able to predict something and therefore possessing free will. But what does predictability have to do with the fact that the desicion we take is just the evolution of a system? The fact that we can't predict the evolution of the system doesn't mean we can decide the path the system will take right? P.S. Ok, now I understand a little more what I mean by free-will. Free will is the ability to change the path of evolution of the system, when the system is our brain. By the way, if you find some error in my english please inform me.