whats interesting is how exactly a black hole would get bigger. Something with so much gravity light is affected you would think it's getting smaller and more dense and greater gravity. Perhaps the size of a black hole has nothing to do with how it appears. How can we even compare theoretical and real measurements if light gets sucked into it. That's like asking a human whats in a dark room. And no it's not a matter of spectrum and that a tool can detect, undetectable forms of radiation, it all gets sucked into the black hole.