I'd guess, PF, that Blue is referring to the Bomb. The threat of death in an unnecessary war can do strange things to your head. And then there's the "atom-age mutant" explanation for the cultural upheaval of the Sixties.
I agree that "Hair" was Broadway hippy exploitation for the middle-aged, but it was better than average for what it was. I wouldn't condemn it just because the Cowsills did a cover of the title song. I found an LP of "Your Own Thing" last year, and it's so bad I haven't listened to the second side yet. Musicals are silly, I know, but sometimes I'm in a silly mood.
As to what was in the San Francisco music that made it special, I'd say it's something "metaphysical", to quote Paul. Something about "being and knowing", and being in on it. I know it sounds like crap, but I can't just say "psychedelic", it doesn't have a specific meaning anymore.



