What if everything we see is actually inside a black hole so massive that the distance between it's singularity/surface and it's event horizon is much larger than the observable universe?

Let's say it's mass was a trillion trillion times the mass of the observable universe, and the distance was a trillion times greater than the diameter of the observable universe.

Would we be able to detect being inside?

To account for the age of the universe, it's a rotating BH and we're in an orbit around it's centroid.

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I am Mugs, of the Alien clan of Usa, Nordamerica, a Terran, of Sol.

Mine: "Perception isn't reality. It's merely an abstraction thereof, and quite often not a very good one at that."

Heinlein's: "Staying young requires the unceasing cultivation of the ability to unlearn old falsehoods." "Freedom begins when you tell Ms. Grundy to go fly a kite."