You've probably heard about the thing where scientists simulated 10 seconds of half of a mouses brain with a supercomputer. Does anyone know how fast of a computer it would take to simulate an ants brain? On a related question, lets say you wanted to simulate 1 cubic milimeter of the real world. And you wanted to be able to simulate ANYTHING that can happen in that cubic milimeter (ants brain, chemical reactions, nuclear reaction) down to the lowest level describable by modern physics (quantum mechanics, or the standard model) in real time. How big of a supercomputer would you need to do that? I think that there should be a way to convert all the different processing speed measures into some standard measure which was based on how large an area of space that that computer can simulate in real time. Or if you use FLOPS as the standard measure, how many FLOPS does say 1 atom have (looking at it from the point of view of how many FLOPS it would take to simulate that 1 atom)?