# String Theory Landscape [duplicate]

• Damon, the accepted answer to the question I've linked explains how the $10^{500}$ is calculated, though it's in a comment to the answer not the answer itself. The source article (also written by Urs Schreiber) is here, and the calculation is discussed in the section Models in type II string theory / F-theory. – John Rennie Dec 12 '14 at 15:33