Text #4190350

Black holes are one of only a fairly small number of cases in the history of science in which a theory was developed in great detail as a mathematical model before there was any evidence from observations that it was correct. Indeed, this used to be the main argument of opponents of black holes: how could one believe in objects for which the only evidence was calculations based on the dubious theory of general relativity?

—from A Brief History of Time, a book by Stephen Hawking

Active since February 3, 2019.
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o4do0q2x8u 6 138.38 February 3, 2019