Japan now has the fastest supercomputer in the world now. It’s five times faster than next fastest supercomputer, so now we’re behind in a supercomputer race with Japan. It’s used to perform weather modeling. I’m not expecting local weather forecasts to get any better (for instance, the rain that yesterday was supposed to arrive late tonight was here when I woke up); the computational results are still only as good as our understanding. All computers are the same – they do exactly what you tell them to do, not what you want them to do.