Busan cranes use 5G to control their multi-ton game of Tetris Yard crane No. 207 in Dongwon Pusan Container Terminal looks like a massive claw machine, except that the objects it transfers are not dolls or toys, but containers weighing up to 32 tons. Using its steel claws, or “spreaders,” these transfer cranes load and unload containers from trucks and stock them up in the shipping yard like building blocks. The way the equipment operates looks simple — not very different from how a claw machine would pick up toys. But being the human controller behind this equipment is not easy. Being an operator of one of these huge machines means you have to climb up to a cockpit 25 meters (82 feet) above ground and remain stuck inside the space for long hours, no bathroom breaks allowed. Matching up the four corners of containers to stack one on top of another can be an arduous task with just one’s bare eyes straining to see from the cockpit. Mistakes lead to grave results, as falling containers can be fatal to any unfortunate human peers on the ground.