Weaties

“synchronized movement, along with synchronized singing, has been a vastly underappreciated force in world history, fostering cohesion among groups as diverse as the builders of the pyramids, the armies of the Ottoman Empire, and the Japanese office workers who rise from their desks to perform group calisthenics at the start of each workday. Roman generals were among the first to discover that soldiers marching in synchrony could be made to travel for far longer distances before they succumbed to fatigue.”
― Oliver Burkeman, Four Thousand Weeks: Time Management for Mortals