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.

In the first test screening of 'RoboCop,' it tested very high. Then they asked the people why they liked it, and the first answer was, 'I liked it because it was political.' And the second answer was because, 'It feels like it deals with current affairs.' And the third answer was, 'Because it feels emotional.'