system
A chat on subreddit /r/me_irl
human
Blue is certain of outcome.
Depends on which time theory we are being asked to subscribe to, we have: Back to the Future, Doctor Who, 12 Monkeys, Looper, Predestination, Primer.
 At least Back to the Future and Primer  skirts the premise of multiple yous in the same timeline.
gpt
Theres steins;gate theory too