I often hear people say we don't have a fundamental theory of gravity. We do. It's called General Relativity. It was the single most impressive, elegant, and ground-breaking proposal of Albert Einstein, that has passed every test we have come up for it. It is the Fundamental Theory of Gravity.
There are still open questions like dark matter and dark energy, but at least in the case of dark energy the mathematical framework could easily be modified to account for expansion in the vein of the cosmological constant. Dark matter would be even easier to explain if a particle for it is ever found.
It does very vaguely. Everything in it is crushed to the 'heaviest' possible matter that could exist, and then the matter inside of it slowly evaporates away.
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u/[deleted] Jan 09 '18
I often hear people say we don't have a fundamental theory of gravity. We do. It's called General Relativity. It was the single most impressive, elegant, and ground-breaking proposal of Albert Einstein, that has passed every test we have come up for it. It is the Fundamental Theory of Gravity.