How long does it take to build a 3D-printed house?

Alquist used a massive 3D printer to create the structure of the home out of concrete, rather than wood and other traditional materials. The process took just 28 hours — the typical Habitat for Humanity house takes at least four weeks to construct — and it cut building costs by 15% per square foot.

Been looking into this tech for Anon-Island.

I am very confused by the anon island thing... It feels like what the elites do.
"we are special so we are going over here, and you (other people) stay over there."
I don't like that feeling.
Perhaps I'm missing something.

Im glad someone else noticed this same thing.