In physics theory doesn’t mean some random guess. Theory means it has been experimentally validated.
Comment on Can energy be associated with/related to spacetime ?
andresil@lemmy.dbzer0.com 4 days agoHartley has a very simple way of viewing this, see photo from his textbook “Introduction to General Relativity” photo
One thing to remember is that GR is still just a theory with a substantial lack of experimental proof, but the maths does work out quite well with it
musicalphysics@discuss.online 2 days ago
nnjwwl@lemmy.world 4 days ago
I’m not sure what your definition of experimental proof is. There have been many experiments to test General Relativity over the past 100 years. As far as I know none of those experiments have found significant disagreement with the theory.
andresil@lemmy.dbzer0.com 4 days ago
Here’s a paper about testing einstein’s theory:
arxiv.org/pdf/0806.1731
It is an older paper, but aftet a skim the only significant missing experiment is LIGO.
If we had tested everything that could be for GR or it had no contraditions we wouldn’t be creating modified theories of gravity or proposing new constants to try solve things, or trying to come up with some quantum theory of gravity.