I'm curious if you've thought thru actual locations for building said city (especially if site is in US). I just finished "Triumph of the City" and it really echoed this.

I definitely think it's possible.

Have you been keeping up with Sidewalk Labs, YC Research and their attempts to reshape cities?

Also, would look at Tom Currier's stuff (although he is no longer actively working on this) https://medium.com/@tomcurrier/build-something-people-want-1...