I probably am not very good at making predictions about such things, but I'm sure that in, at the… at least the early decades of the coming century, these problems of simplicity and complexity will be very important. Molecular biologists have found this very simple genetic code, the theory that they've had to use they could generate themselves. They've pretty much looked down on theory as a separate activity, but now when one comes to questions of the stretches of DNA that are not so far interpreted and don't seem to code for proteins, when one comes especially to ideas about genes turning one another on and off in a regulatory network, I think everyone will have to admit that theory is quite important and we can see this in so many other domains, in so many different subjects and in topics that transcend a subject, that transcend fields, interdisciplinary topics, that the interaction between simplicity and complexity is really important, requires a lot of deep theoretical work, along with computer modeling and simulation, and of course experiment and observation. But I think these subjects are going to be very important. At the same time, fundamental physics I think will be important for quite a while. We're making huge strides right now in cosmology and in M theory and if the large hadron collider is built at CERN there will be high energy experiments that will be very exciting and may very well verify some of the ideas of supersymmetry, superstrings, M-theory. I think it's going to be a very exciting time. I just hope I live to see some of it.