Mr.Susskind has a Stanford lecture on this topic detailing the physics in his own unique & awesome way <a href="https://www.youtube.com/watch?v=9crggox5rbc" rel="nofollow">https://www.youtube.com/watch?v=9crggox5rbc</a>
If your theory is not "predictive", it's not a theory, just Aristotelian wanking.<p>People that have been working on quantum gravity for two decades and haven't made a single testable prediction?<p>Some point you have to accept you've been led down a blind alleyway.