I think you answer your own question. Because of technology, it is irrelevant where we are physically located. So people live where they enjoy living and San

I think you answer your own question. Because of technology, it is irrelevant where we are physically located. So people live where they enjoy living and San Francisco (i.e., Bay Area) is a great place to live. Here you will find successful as well as not yet successful (and still hungry) entrepreneurs and technologists. So it is a great place to do startups as well. And you see the trend even within the Bay Area, the center of mass is definitely moving North.