LIGO may or may not turn up "new physics," but I for one think it's already plenty exciting to (i) confirm the predictions of GR (not a given), and (ii) be able

LIGO may or may not turn up "new physics," but I for one think it's already plenty exciting to (i) confirm the predictions of GR (not a given), and (ii) be able to "see" the state of the universe through this new instrument -- there's more to (astro)physics than just the relevant physical laws.