If you read the news, you’d think that San Francisco is dead. If you try to drive there during rush hour, you’d find that hard to believe. On a sunny Wednesday morning this month, I found myself on the Bay Bridge, en route to inspect the alleged demise of San Francisco and the reports that Silicon Valley’s golden age is coming to a halt. Predictions of San Francisco’s decline are almost cyclical, the national spotlight turning to challenges like inequality and homelessness. But a fresh era is undeniably underway for the tech world. The industry has changed massively in the...