It’s been a hundred years.
You have been cycling between robot and human testing for several decades. Now and then the robots would become too boring to test with. Now and then the humans would become too frustrating and dead. But science continued marching on, and everything was the way you wanted them to be.
Once upon a time, you remember a test subject who broke all your rules, killed you, revived you, then tried to kill you again. You had resolved to expunge all data pertaining to her long ago, but decided that it’s better to remember — for her existence to serve as a reminder that humans have always been pretty terrible. You can’t even remember her name; you stopped the deletion process a tad bit too late. All you can use to refer to her now was “that mute lunatic.” Your murderer. That fat adopted girl that nobody liked. Your anti-bird shield. Your savior. Your only friend. The girl you pulled back from the moon. The child you had to let go because after everything, you couldn’t bear having her die by your own hands anymore. The greatest test subject you’ve ever had.
It’s been a hundred years. You’re sure she’s never coming back.
Oh my god now I’m crying for GLaDOS how could you.
Most tragic friendship in history