It’s coming up for a century since Albert Einstein explained the entire ‘classical’ universe. Neatly, and in ways that have been tested every which way, without being disproven.
He never did manage to reconcile quantum physics with his macro-level rules, but there’s no question that Einstein got it right about the big stuff. General Relativity, remember, is actually a theory of gravity. And everything about it has been checked out. Repeatedly.
Still, there are points where his rules break down. I mean, literally. Points. As in mathematical points. Places that have no diameter.
They’re called ‘singularities’, and they’re inside every black hole. We can’t see them, because the singularity is masked by the event horizon. This is the point where the escape velocity of the object exceeds lightspeed – meaning light doesn’t escape, hence the term ‘black hole’.
Einstein predicted that too. And the fact that the singularity was inside an…
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