The familiar voice of Muhammad Ali booms out over footage of iPhone users' selfies as he declares, "I am the greatest!" This time, however, Cassius Clay isn't talking about dominating the heavyweight championship but the entire universe. In a bit from the boxer's comedy album, he asserts that he's good looking, clean living, cultured and, of course, "modest." Laughter from the audience greets his feigned humility as the barrage of portraits, both in color and in black-and-white, continues to fill the screen. Apple uses Ali's bombastic words to comment on the quality of the pictures, which were taken with Portrait Lighting on iPhone X.