I don't know....We'd really like to understand what becomes of the matter and energy that find themselves inside the event horizons of black holes (assuming that such horizons do actually form, but that's another question.). Such an understanding would likely (being optimistic) have profound implications on what we can actually observe on this side of the event horizon (but I forget what the status is of the bet/debate between Thorne and Hawking re. information loss in black holes). Doesn't even the mere existence of black holes have something to say about the universe we live in? Is the multiverse concept so much further removed from that of black holes in at least this sense?