> The atmos in the Bay Area is part of the reason SV is where it is. I don't think you addressed evgen's point - Let's assume that the atmosphere in the Bay A

> The atmos in the Bay Area is part of the reason SV is where it is. I don't think you addressed evgen's point - Let's assume that the atmosphere in the Bay Area is part of the reason SV is where it is (having read Steve Blank's "Secret History of Silicon Valley" I'm not sure I'd agree) - to refute his point you would have to show that San Francisco is indeed a tech hub. Otherwise it could be the case the the tolerant attitude of the entire Bay Area caused SV to happen where it did, and San Francisco picked up its reputation as a tech hub because it is in the area and shares the atmosphere, even though San Francisco itself had nothing to do with the tech hub forming. I suppose you could argue that San Francisco and its history were indispensable in forming the Bay Area atmosphere and attitudes, but you did not say that.