Sure, but there are two possible ways to "not believe" in black holes. One can say "there is an alternative not yet known explanation to gravity and this expla

Sure, but there are two possible ways to "not believe" in black holes. One can say "there is an alternative not yet known explanation to gravity and this explanation will not have singularities/math artifacts." While GR is one of the most verified theories in physics I have some modicum of sympathy for that view. What is disingenuous is her view "black holes dont exist because GR measurements are bad." Because they really are good and statistically significant. For LIGO results you can reject the nature of the compact bodies (although the fits are very good), but you cant reject the event of the detection.