The Mystery of ExistenceRecent discoveries in cosmology have led to a renewed surge of interest in ultimate questions of existence. What, if anything, came before the big bang? If the universe appeared from nothing in a law like manner, then where did the laws come from, and why do they have the form that they do? Or is our universe but an infinitesimal fragment of an eternal, infinite sea of diverse laws and universes? This book provides a comprehensive review of attempts