If time were to go in reverse, how exactly would the universe, and humans act? For instance, humans can think and be conscious while time is pointing in a forward array, but can humans be conscious while time is running backwards? That is what one would think, right? Would mathematics have to change? It seems like everything is normal while time is going forward, so why would there be a great difference if time were to run backwards? Why can't we be conscious, thinking, humans? I'm not asking for an argument on the validity of my question, but just a general discussion, if possible.