An interesting question comes to my mind: what's gonna be the future of building technologies, bots like this or 3d printers?

As far as i know, they started experimenting with 3D printers, where they can almost finish the whole structure in just one day. Bots like these are also very impressive but i am not sure in which ways these can compete with 3d printers, in terms of being mainstream. Of course, 3d printing seems to be only for cheap housin (this can change though) but still, it's remarkable that we have these kind of technologies. It's almost overwhelming!