They were copying a Germen technique (curb trenching) but trying to cut costs even further[0]. Google called it an experiment. [0] https://www.youtube.com/watc

They were copying a Germen technique (curb trenching) but trying to cut costs even further[0]. Google called it an experiment. [0] https://www.youtube.com/watch?v=Wisrs03EkDM https://www.youtube.com/watch?v=Wisrs03EkDM