[chezlaw]

There's also the philosophical. Stuff like Nozicks theory of knowledge and the resurrection of analytical philosophy by Lewis etc. make use of the concepts of many worlds. These approaches seem to me to capture the essense of what's going on when we talk of meaning and knowledge etc but maybe it doesn't require these other worlds to actually exist.

David Lewis argues that there's good reason to believe they do have actual existence. I have his book but never manages to struggle past the beginning. Anyone?

chez