Unregulated tech tests: Thiel, Altman and co want Freedom Cities

List of current and past projects:

Akon City

Cryptoland

MS Satoshi

Próspera

Planned:

Bitcoin City

Also, charter city is a better term. There is no guarantee “freedom” is preserved more inside the city fence than outside it.

History shows city states go to war with each other and within themselves far more readily than nation states. Presumably shining technofascist utopias will not be needing the US Army or Judiciary as they'll have their own robot militias and summary justice AIs?

Libertarians have always been about Freedom. Freedom to oppress the powerless, however they see fit. It's their fever dream. This state will inevitably degenerate into a feudal mess. Lois McMaster Bujold's Vorkosigan Saga book series features a world like this that she dubbed Jackson's Whole. The entire series is a fun read, but the novella "Labyrinth", which is also contained within the novel "Borders of Infinity", specifically explores this world.