How do we know Einstein has it right?

Question

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?

In: 593

Answer 1

Einstein’s GTOR was able to make accurate predictions that Newtonian gravitation couldn’t. We know that it’s not completely accurate because there are still some phenomena that it can’t explain, like the behavior past the event horizon of a black hole.