Hi, some time ago I read the book “The black hole war” by Leonard Suskind and I became aware of the issue of the lose of information in the black holes. Since then there is a question that is racking my mind but I am not smart enough to find the answer. Is about determinism. Lets say that we have an isolated system of particles bouncing and colliding with each other, etc.. If we know the information of each particle and the physical laws, we can reverse the movie in time and know how the system was at a given point in the past. Now we put a brain in the system and the brain can move a lever and push a particle to the right or to the left side. If the brain is a mechanism like any other, we can still reverse the movie, but if the brain can really choose what to do, doesn't it means that we cannot reverse the movie and the information chain is broken? This would go against the principle of conservation of the information.