The Problem of Free Will in Physics

The problem of free will and explaining say knowledge creation more broadly within physics cannot be phrased even within the traditional conception. The only way in which you could come up with a prediction about what I will do would be to have a full simulation of me as a brain. But suppose that there were a principle of physics that said that it's actually impossible, so another counterfactual is possible. So that's one way in which I was conjecturing in the book along the lines of also what David conjecture and others can solve this problem.