And don't forget, Tegmark gave us the "quantum suicide" thought experiment (google it or see the thread in General Science). Personally I think it's pretty sad if 60% of scientists in theoretical physics think many worlds is "true", in the absence of even a single observational fact that distinguishes it. But I submit you will not find that among all practicing physicists-- only those "leading ones" who I submit have a pretty good dose of hubris to go with their brilliance. Of course we'll take the former to get the latter...