Yes I wonder if we could design an underground watering system. One possibility is to put a pipe with holes in it underneath the top layer of the soil. Then run water through the pipe and the water would leak out through the holes and get closer to the roots. The challenge would be to make sure the holes in the pipe do not get clogged with dirt.
Good point on the impact this would have on the labor pool. I did not think about that. I look forward to working with you as well. I think production and distribution ties do make for a better systems view.