> I mean you can die on that hill, but I'd hazard a guess that nearly everyone considers SF a part of Silicon Valley
Well, unless you're from the SF Bay Area (or just Bay Area). SF is a city. SF Bay Area (or just Bay Area) is a broad region. Silicon Valley is San Jose, Sunnyvale, Santa Clara, Redwood City, Mountain View, Palo Alto, Menlo Park, and Cupertino.
> I mean you can die on that hill, but I'd hazard a guess that nearly everyone considers SF a part of Silicon Valley
Well, unless you're from the SF Bay Area (or just Bay Area). SF is a city. SF Bay Area (or just Bay Area) is a broad region. Silicon Valley is San Jose, Sunnyvale, Santa Clara, Redwood City, Mountain View, Palo Alto, Menlo Park, and Cupertino.
Also: https://duckduckgo.com/?t=ffab&q=SF+vs+silicon+valley&ia=web