In South Korea, hotel workers are folding napkins and polishing glasses while cameras track every movement, all to teach humanoid robots how to do the same work inside hotels, factories, and warehouses. ADVERTISEMENT ADVERTISEMENT At a high-end hotel in the country’s capital, Seoul, David Park is folding napkins, wiping glasses down, and setting tables, all while every movement is recorded in detail, with cameras strapped to his head, chest, and hands. Park takes part in the recording sessions