This explanation makes a lot of sense. I was scrolling through the thread looking to see if this just some rumor or a made-up technology. When I traveled to Ch

This explanation makes a lot of sense. I was scrolling through the thread looking to see if this just some rumor or a made-up technology. When I traveled to China frequently enough to soak up some aspects of city life I really enjoyed seeing the outdoor activities: Dancing grannies, martial arts classes in parks, old guys playing cards on folding tables in alleyways.