Check out:
http://www.sy231theory.com/Superstring_Theory.html String Theory begins where chaos theory and quantum mechanics leave off. Also known as the Theory of Everything, another name for string theory is the Unified Field Theory (see: http://whatis.techtarget.com/definition/0%2C%2Csid9_gci554508%2C00.html and http://www.tomarken.com/content/rev/articles/2003/unifiedtheory.shtml)
... that's where Einstein was stuck.
It looks like the show (and the book), The Elegant Universe might provide some interesting food for thought. I plan to watch the show tonight and order the book as well.
Robert
