If we assume that macro-scale matter like we have in brains only acts in ways that are caused, then would not all actions in human behavior be a result of prior physical events beginning with development from conception? Alternatively, if you look at a brain as a information processing machine, or the mind as algorithmic/functional, then even ignoring material determinism, would not the deterministic character of algorithms lead to determinism in human behavior? Note this second point applies even if some sort of dualism were true. In the face of this logic, how have philosophers defended free will?