As someone who doesn’t live in a major city (Turin, Italy), I do not think one needs to move to SF *but* I do agree that not doing so will cause the perception noted above, and it’s worth knowing that. The same for plenty of other signals about priorities.
This tweet is a video, so you should click on the pic above to open it in Twitter and play it, but it’s worth it. Daniel makes a key point in a reply to a comment: “It's perfectly optimized for the man to speak to the machine while traveling 200mph pulling lateral 5Gs.”
That’s a picture of a $380M microchips-making machine.