[Barrin92]

I'm confused, are you insinuating that Barcelona isn't real or not part of a modern capitalist society? These superblocks already exist in the city. This urban design has been around longer than the USSR.

https://en.wikipedia.org/wiki/Eixample

[egao1980]

Barcelona's blocks are nice but won't work as a mostly pedestrian self contained urban unit. People have to work and get social services outside those blocks.

If you scale them up a bit, add infrastructure, add workplaces and make it 10-15 walking distance and add public transit links to other such places that will do it.