Imagine using a printer to build a house.  The Jetson’s had fanciful building machines in the cartoon which would print out a skyscraper in lighting speed.  This unit is real and does the job on a small house in a day.  Interesting.  It appears like a robotic arm placing a concrete polymer in successive bands to form the structure into which are placed the insulation and then covered.  One thing I was missing was the application of the insulation into the walls beneath the windows.  Was that done prior to the application of the window base, or at the end with the application of the rest of the insulation.  Another thing I was missing was the wiring or tubes through which wire could be placed in the wall.  On the whole, impressive.