The center of the tech universe will always be the point of least resistance (to new ideas, cultures, mixing, lifestyles, etc). For now, that's San Francisco (

The center of the tech universe will always be the point of least resistance (to new ideas, cultures, mixing, lifestyles, etc). For now, that's San Francisco (apparently) but for how much longer is anyone's guess. Unless the necessary environment changes (i.e. tolerance is no longer a requirement) it will remain in SF or a place like it. If tolerance and acceptance is somehow no longer necessary for a tech hub to bloom, it might end up anywhere.