Ill buy the idea that there aint alternate universes. But no black holes? Thats tough to swallow.I agree. Most theories regarding alternate universes aren't very testable... but the astronomical data regarding black holes (as well as the theory predicting them) is pretty well established, isn't it?
What do you think is the motivation behind the "no black holes" crowd?
Although I have barely scratched the surface of the topic in my reading, I didn't know there was any way to test the existance of alternate universes. Mostly because I thought any interaction between universes would mean that the 'other' one was then somehow part of ours, or else we couldn't interact.
Always amused me how certain scientists arch their back and rasie their fur at the mention of God, because a being with infinate power whom you have to take on faith just ain't science. But if infinate, unprovable universes help solve your equation, or publish your paper, then by all means, throw 'em in! Suddenly it's great science!