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> Don't you feel that these evidences just make a case from models checked in small scales and tell the whole universe what it should do?

Yes, we like to think that the laws of physics we can deduce locally are global. That could be wrong, for sure. But consider that we understand the physics of our solar system (which has a star), and we see other stars in the skies which... implies that at least as much of our local physics that makes stars possible also applies where we see those stars.



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