I completely agree with you that geographically speaking, silicon valley is considered a sub-region of the greater bay area, but it's also kind of an entity or

I completely agree with you that geographically speaking, silicon valley is considered a sub-region of the greater bay area, but it's also kind of an entity or state of mind that goes beyond its borders. For instance, if someone in LA wrote a wiki about "moving to hollywood", we wouldn't expect it to be geographically limited to hollywood. Personally, I don't think the title is all that bad.