Another point is that there must be some time scale at which the knowledge will diffuse out of the concentrated areas. We can’t turn on remote work and - snap!

Another point is that there must be some time scale at which the knowledge will diffuse out of the concentrated areas. We can’t turn on remote work and - snap! - suddenly the worlds rural areas are full of techies. It may take decades. my company went full remote during the pandemic. I’d say 1/4 is outside Bay Area now, with most in mid size to large cities in USA. Give it another few years and I anticipate we’ll hire a larger fraction still each year remote, some on smaller towns etc.