and i think stephen hawkings is interested in a theory of everything. >> they're interested in how you can combine quantum mechanics which deals with e very sma which incideally is what my daughter worked on. >> is she working on the hydrogen collider. >> in geneva. >> and how you combine the thought there and how that works quantum mechanics togeth with gravity, and is thereome wayof understanding that. and ere is a theory i'm now well out of my depth so i may even say something stupid but theories which have taken string theories, called the n theory that are trying to put this together and stephen hawkings is in the middle of this. >> isn't she, aren't they in cern switzerland trying to figure out, take life to the time of the great. >> the big bang. >> they want to take it back to that. >> it's-- enough energy, you see what they do, they've got these big colliders, about 20 kilometer. >> 70 miles of track. >> and i've been down there, it's extraordinary. and they collide these things. >> protons and they produce so much energy that they get close, closer to the conditions that exis