So if it's a 10 or 20 year "major" blip does that make it longer than "temporary"?
Locals tend to go to museums once or never, lots of places have good bars and restaurants and the idea of SF having a proximity to real nature is a joke. I guess time will tell if you, I or someone else is ultimately correct, but the pull of SF was the jobs above all else; if that's gone then I'd argue there are much better places to live for the amenities. NYC is in a similar boat - you move there for the people and what they bring when packing too many people in too small a physical space. This doesn't seem what most are looking for now or in the near/mid term.