I'm not seeing this. It's a dull period for San Francisco. The first dot-com boom was more fun. Connecting up everybody and everything was important. This boom is all from ad-based companies, and most of what they're doing is rather banal. So are many of the people doing it.
Almost all the artists who need more than a desk and a laptop moved out years ago. SF used to have lots of big empty warehouse and factory spaces that were used for art projects and wild parties. That's what SOMA was. Those are gone, replaced with "live/work lofts" or giant bullpen workspaces.
I do not get why tech people want to live in the Mission. I've had friends there for years, and it's tolerable, but not a place to live in by choice. Wednesday I went to a stand up comedy improv thing in the Mission where people tried to put together presentions from random PowerPoint slides. Heavy bouncer presence outside because it was right next to a service center for homeless people. The comedy sucked, too. That's what the tech crowd is bringing into the area.
Here's a typical Mission location, one which also happens to be a Google bus stop. "Cafe la Boheme" has crappy food, and it's had crappy food for years. The place with the graffiti is an upstairs dance studio which is hanging on. "Chinese Food and Donuts" isn't very good at either. That corner has looked the same for many years. There are some decent restaurants a few blocks over on Valencia, but not at this corner. There are cool places to live in SF, but this isn't one of them.