Wednesday, February 08, 2017

[ariplvdv] GUT and TOE beauty contest

Grand Unified Theories and Theories Of Everything are difficult to test and disprove.  They cannot be tested on current or even reasonably imaginable future particle accelerators.  We can check that a theory agrees with observations in the low-energy regime, and whether they match astronomical observations of faint relics from the universe's high-energy era.

Given these difficulties, selecting a good such theory becomes more of a question of aesthetics than science.  Which such theories are beautiful and which are ugly?  What defines beauty of a theory?  Occam's Razor is likely important.  Given a precise definition of beauty, find, perhaps computationally, the optimally beautiful theory which agrees with weak and faint observations.

The E8 Theory Of Everything likely attracted attention due to its aesthetics.

No comments :