The most significant thing about this theory is that it makes predictions. Several of these predictions will be experimentally tested next year at the large hardron collider.

When I first saw this in Focus magazine a few weeks ago, it struck me that it is in fact a periodic table of the quantum world, and this is exactly how Lisi describes it. It has already predicted quantum particles with properies which have later been found, just as the periodic table did. It also neatly ties them all up together, along with all the interactions and force carrying particles.

The fact that it is consistent with existing quantum field theory and the standard quantum model - is exactly the point of a unified theory. Any candidate for a unified field theory must be consistent with both special relativity and the quantum standard model.