Brian Greene

One of the strangest features of string theory is that it requires more than the three spatial dimensions that we see directly in the world around us. That sounds like science fiction, but it is an indisputable outcome of the mathematics of string theory.

The central idea of string theory is quite straightforward. If you examine any piece of matter ever more finely, at first you'll find molecules, atoms, sub-atomic particles. Probe the smaller particles, you'll find something else, a tiny vibrating filament of energy, a little tiny vibrating string.

It's high time for the art world to admit that the avant-garde is dead. It was killed by my hero, Andy Warhol, who incorporated into his art all the gaudy commercial imagery of capitalism (like Campbell's soup cans) that most artists had stubbornly scorned.