Tech elites are starting their own for-profit cities (ft.com)

While it sounds cool, the history of would-be founders of cities / countries / societies shows an extremely high failure rate.

Obvious exceptions can be found in European colonialism, where the occupying power conceived of itself as a for-profit corporation.

One might note the grim human rights records of most of those successes. Not that the "tech elites" care much about that bit.