Engineers train computers to recognize common patterns in mountains of data by exposing them to numerous variations of the same thing. This process is called machine learning, and it is fundamental to artificial intelligence, or A.I. While A.I. is often seen as mysterious and complicated, in fact the way we teach computers to learn has a lot in common with the way human beings learn. To learn more, visit: nytimes.com/facebook T Brand Studio is the brand marketing unit of The New York Times.