Everything we've seen about #BlackHoles fits with Einstein's theory of gravity, general relativity. But PLEASE don't give Einstein credit for coming up with black holes -- when they were theorized by others, he didn't even believe they could happen!
I get that people like to have an archetypical extreme genius, and Einstein did accomplish a lot! But he didn't discover EVERYTHING and he certainly didn't work alone. He had lots of collaborators and built his ideas on a LOT of previous work.
When Einstein was working on general relativity, he realized he needed more sophisticated math than he knew, so he had his colleague Marcel Grossmann teach him differential geometry. Science is a collaborative venture! More on the "lone genius" idea here: http://astrokatie.blogspot.com/2013/06/the-lone-genius-hypothesis.html …
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