Brick-laying (even with general purpose arms) robots are already in production use. https://www.youtube.com/watch?v=G_Pj2GI6-xc https://www.youtube.com/watch?v

Brick-laying (even with general purpose arms) robots are already in production use. https://www.youtube.com/watch?v=G_Pj2GI6-xc https://www.youtube.com/watch?v=G_Pj2GI6-xc https://www.youtube.com/watch?v=fpD5H1EH0go https://www.youtube.com/watch?v=fpD5H1EH0go Combining it with more comprehensive vision so it can figure out where to build the wall might be novel though.