Is the Universe Governed by the Shrudinger Equation?

I like this idea of measuring competing theories by how much progress you can make. I think there's actually, again, two aspects to this. There's a sort of thephilosophical aspect and the physical aspect. The philosophical aspect, i don't have much to say about which is just in a world like ours. So why is classical mechanics a good limit of quanta mechanics? And that's a trickier question, and we're just beginning to make progress on it.