Well, I have done plenty of construction in my days but I admit I am not up to date on the latest. I have my doubts on the roof being 3D printed, you will have to show me that my friend. Also have reservations on the foundation being done by a single person running a 3D printer. Who is even feeding the machine during all this?? Also one technician is not doing the plumbing, windows, and electrical. And wow "just"? That is a lot of work.
It is absolutely not cheaper currently. I will die on this hill. Also you are going to have to show me how it is faster than ICF. Consistent quality? I have no freaking clue what you are comparing it to.
I don't know much maybe, but I certainly know more about home construction than you.