(Daniel Dorsa | The New York Times) Wall-E, a robot that analyzes shelves and tells employees exactly which ones need restocking, at a Walmart in Phillipsburg, N.J., Nov. 14, 2019. Designed by the robotics company Bossa Nova, Wall-E is one of 350 robots at Walmart stores across the country with a purpose to free up employees to interact with customers or focus on other initiatives. (Daniel Dorsa/The New York Times)