- A life in which one has an alter ego.
- Superman lives a double life as hero and as the reporter Clark Kent.
- 2018 March 26, A. A. Dowd, “Steven Spielberg Finds Fun, and maybe even a Soul, in the Pandering Pastiche of Ready Player One”, in The A.V. Club, archived from the original on 31 May 2018:
- Our window into both worlds—the cluttered “real” one and the expansive virtual-reality alternative—is 18-year-old orphan Wade Watts (Tye Sheridan), who lives a double life as a vaguely elven avatar with frosty, malleable hair and a DeLorean constructed from 1s and 0s.