"Extraordinary claims require extraordinary evidence." I don't think the detection of GW falls into the category of an extraordinary claim. Gravitational wa

"Extraordinary claims require extraordinary evidence." I don't think the detection of GW falls into the category of an extraordinary claim. Gravitational waves are a clear prediction of general relativity, and general relativity has passed many tests (precession of Mercury, gravitational lensing, gravitational time dilation, etc). In addition, the Hulse–Taylor binary pulsar's orbit decay provides strong evidence of the existance of gravitational waves, completely independently from the evidence from LIGO-like detectors.