Fine-Tuning: Why Do Fundamental Constants Have the Values They Do? (String Theory)

Many of the fundamental constants in our universe seem precisely set in the range that allows life to form. This is one reason why some physicists have been turning toward the anthropic principle, because it so readily explains this fact.
Physicists hope, however, that a theory of everything would explain the precision of these values — in essence, explain the reason why life itself is allowed to exist in our universe — from fundamental principles of physics.