[tophat9000]

Don’t get how you think the concept of a black hole is Metaphysics?

Start with a simple question:

Does gravity affect light?

[thoughtomator]

> Does gravity affect light?

That’s an extremely unsimple question, given that there is no accepted mechanism for how gravity works at all, never mind how it would affect something with zero mass like light.

The true answer is: we do not know. We see effects that may be caused in this manner, or may be caused by other phenomena.

[x]

Isn't any sufficiently incomprehensible phenomenon indistinguishable from metaphysics?

Discus and give examples.