Is dark matter made of teeny tiny black holes from another universe? Welllll…

Yeah, you're gonna want to sit down for this one. It's a little a lot:

It's possible that dark matter is made of tiny black holes created at the very beginning of time by nucleation from bubbles of false vacuum that created baby universes containing sub-lunar masses of matter during an infinitesimally brief period of cosmic hyperinflation.

If so, a team of scientists think, this could solve several nagging puzzles about the Universe, including dark matter, gravitational wave sources, and an od...