Are They Really Black Holes?

Black holes have sort of an interesting journey rit like first we thought up of them as an imaginary thing, like we saw the theory and we imagined that they could exist. They should have looked like they were there gravitationally. And then more recently, we've actually seen them. But now we're asking the question here to day, are they really actually black holes? The things we're seeing and feeling neras? Can you really see something that's just black? You know? It's like sort of not seeing it is seeing it. Ot, exactly consistent with the black hole prediction. We didn't see photons from it. What does that actually prove? Right? Right?