Moving Beyond String Theory

Wired: Ask any credentialed nerd what the ultimate theory of physics is, and chances are they'll reply, "string theory."

In string theory -- an idea that's been around since the late 1970s -- the universe is a 10-dimensional place, with six of those dimensions curled up inside themselves like a cat in front of a fireplace. All particles and forces are different resonances and vibrations of these 10-dimensional strings.