http://en.wikipedia.org/wiki/An_Exceptionally_Simple_Theory_of_Everything
The standard model and general relativity are the best mathematical descriptions we
have of our universe. By considering these two theories and following our guiding principles,
we will be led to a beautiful unification.
Garret Lisi - An Exceptionally Simple Theory of Everything - PDF
http://arxiv.org/pdf/0711.0770