There's that thing about the '80s, the '40s and the '60s, and the '30s, the '50s and the '70s. Something about those odd decades in this century that weren't too pleasant.
San Francisco is 49 square miles surrounded by reality.
Life is change, how it differs from the rocks.
Compared to what they were, rock concerts now are like business meetings.
You couldn't have fed the '50s into a computer and come out with the '60s.
It's a lot of random situations that combine in a certain volatile form and create a bigger-than- the-whole situation that nobody could have predicted.