What happens to things that fall into black holes? Here is an admittedly highly speculative head-twisting suggestion published by National Geographic. It offers an explanation "certain features of our universe deviate from what theory predicts, according to physicists." I see that Science has reported on the same theory by the same scientist (BTW, his name is Nikodem Poplawski, and he works at Indiana University in Bloomington).

A long time ago, in a universe much larger than our own, a giant star collapsed. Its implosion crammed so much mass and energy together that it created a wormhole to another universe. And inside this wormhole, our own universe was born. It may seem fantastic, but a theoretical physicist claims that such a scenario could help answer some of the most perplexing questions in cosmology.