The Earth is smaller than a pinprick in our universe alone. We view our universe through the prism of that smaller than a pinprick object and the fact that the Earth's gravity, the solar system's gravity, the Milky Way's gravity and a lot more, both discernable and not, does things to the our ability to observe our own universe.... well, we'll never really know all that much concerning it until we are out there and truly traveling around in it, if even then. It, our own universe, is both broader and deeper than our views of it. It is only the finite local, relatively broad, plane of it we observe, not its (would be to us) dense mass depth of planes coming at us here, everywhere here is, from a collapsed horizon of an infinity (we cannot possibly observe). It is my view that the [infinite] Universe transforms that non-local infinity (though it remains that non-local infinity) to local physical uses.... to even local observations and physics we observe and experience within our local universe.There is so much we don't understand about the Universe, and that goes more for other universes we are just accepting may exist. In my 57 years I have watched the scientific repeatedly reverse itself as some new discovery or some new approach to mathematics was discovered. Just to be clear, I am not trying to debate String Theory. I am just stating that mankind often approaches problems, situations, and solutions with a predetermined biases based upon what we think we understand. I am just postulating that BH's are probably beyond our current ability to understand and closing our minds to the possibility that as a species we have the ability to close that gap before our inevitable extinction is ridiculous to me. I'm not saying we shouldn't strive for that understanding. I'm just saying that currently it is beyond us as a species.
And our, and life's itself, "extinction" is not "inevitable." Life built itself a relative guarantee against extinction by expanding from its local mudhole. We, and Earth-life itself, may do the same with nova-like expansion and massive decentralizing in going much smaller but much bigger in in-space colonization. No surface is greater to build on, no depth deeper to create in, than the breadth and depth of space itself.