Is there any convincing evidence that black holes exist?
A viewer asks whether Robert finds any evidence convincing for the existence of black holes.
Answer
No, probably not. Black holes, white holes, and wormholes are all products of the mathematics of general relativity, which is why they are looking for them. General relativity's math puts no limit on gravity; Einstein even added his lambda fudge factor to the tensor equation to slow the expansion and get a steady universe. But Lemaitre reversed the process back to a singularity, his cosmic egg, and the tendency of Einstein's gravitational equation is for everything to collapse into a point, a black hole. As Stephen Hawking said, black holes are the curse of general relativity, because that is where the universe ends up, and nobody wants that. So we do not build on the mathematics of general relativity. The only thing we use general relativity for is to show, by their own science, that a geocentric universe is allowed, because relativity by definition permits the reciprocal model, motion relative to whatever frame you choose. We do not use it because it is correct; we use it to force them to admit a geocentric universe is possible, and then we show how you actually build one, which is not by the math of general relativity.