Quantum Gravity

When you try to make einstein's theory of grav match up with quantum theory, it just doesn't seem to work very well. Certain numbers that you'd like to calculate come out to be infinite. This is a killer for the physicists. And they have not solved it yet. But the best hope for solving it seems to be to say, the points that we used to think about as fundamental,. If you picture an electron as just a point with no dimensions at all, just the tiniest conceivable speck. It turns out, if you do that, that all these problems about the infinities go away. The matrix models that i started about were low dimensional examples of the