We constantly say that Einstein’s General and Special theories of relativity have passed many different tests, insenuating their accuracy.
Before Einsten, we tested Isaac Newton’s theories, which also passed with accuracy until Einstein came along.
What’s to say another Einstein/Newton comes along 200-300 years from now to dispute Einstein’s theories?
Is that even possible or are his theories grounded in certainty at this point?
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The way science works is you make a prediction of how things work and if you can you check if those predictions line up with what we can observe.
So, for example, Newton did some predictions of how stuff bheaves and he was right for a lot of stuff, we could make experiments and the results would be just as predicted based on what we could measure.
Eventually, we started learning stuff that didn’t quite line up with how Newton and others said things should work. So people came up with news models of how things work, and the one that Einstein worked on proved to be accurate (to the point it predicted things we weren’t even able to test for until several decades later).
It’s possible that in the future we learn about something that doesn’t behave like Einstein said it should behave and then we have to think of why it behaves differently. But that doesn’t mean what he said is completely wrong, since we can still make accurate and reliable predictions with it just like we can with Newton’s theories.
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