As to the industry comments, I tend to agree with fat_lazy well placed comments.
While the Biotech industry in SD remains strong (it is the 3rd largest such market in the US behind the Bay Area and Boston area), telecom and a few other tech industries have suffered in recent years. Silicon Valley is just very different from any other market and generates more VC capital than the next 10 markets combined yada yada, so you can’t really compare it with other markets.
But I don’t know what that really predicts about housing prices, other than any drop here will be less severe. But any increase here is more severe. We are not immune. The outlying areas of the Bay Area (East Bay on the other side of the East Bay hills/680, far South Bay south of San Jose etc) are getting hit as hard as SD is. The Penninsula (where Los Altos/Los Altos Hills/Atherton/Hillsbouroug/Portola Valley/Woodsid are) stay strong because there is still enough $$ with buyers who don’t want a long commute or work at Google in Mountain View. But in SD, I would say that CV is holding its own vs other areas for the same reasons, albeit on a smaller scale.
I noticed RSF has a lot of out of town/out of country owners, which makes that analysis much more difficult.