this comment completely misses the point. I did not suggest San Francisco needs to be like Zurich. With respect, I think it is idiotic to suggest that the only option for the city to be as safe as Zurich is to become literally exactly like Zurich.
I also didn't say anything about flipping a city's character in a decade. Whether it takes 1 decade, 2, 3 or 4 -- there is no reason to accept the idea that city just has to be unsafe and nothing can be done about it
It’s not reasonable even for the nouveaux riches of tech to expect to flip a city’s character in a decade.