In a frame grab from video, robots walk across the floor of the University of Michigan's Ford Motor Co. Robotics Building, March 12, 2021 in Ann Arbor, Mich. The four-story, $75 million, 134,000-square-foot complex has three floors that house classrooms and research labs for robots that fly, walk, roll and augment the human body. (AP Photo/Carlos Osorio)
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