What exactly do you mean by “Taiwan and Israel are extensions of the SF Bay Area”? What makes them so as opposed to anywhere else that based on a tech economy w

What exactly do you mean by “Taiwan and Israel are extensions of the SF Bay Area”? What makes them so as opposed to anywhere else that based on a tech economy which will naturally need to interact a lot with SF the same way that the financial industry in any city needs to interact with New York and London a lot?