The search for a unified theory of physics has led theorists far and wide for answers. String theory is a major contender in the race to find the unified theory, but there are things that it doesn’t explain. Surprisingly, the answers have been coming from cosmologists. Stanford University physicist Leonard Susskind explains how a vast energy landscape becomes populated with bubbles, each with their own complex landscapes.

Image courtesy of Nomadize; Recorded June 2008; Posted December 2011