3D printers print ten houses in 24 hours

Wait, what?

The 3d printing material here looks disgusting, like an grey, industrial version of pink slime. It just builds up the walls layer by layer in some kind of unholy mortar between bricks that are never to show.

I guess the efficiencies can certainly move this process well into profitability, but the manufacturers are going to have to find a way not to show the building process to the folks eventually to live in the houses.