A brief exchange in the penultimate Season 2 episode of Severance is a direct reference to an episode of The Twilight Zone ...
The Twilight Zone episode "The After Hours" can best explain the lives of mannequins and Innies alike on Severance.
So...back to Severance: the theory suggests that Gemma was never a "real" Outtie to begin with. During her time with Mark, she was a severed version of herself who had an experimental "vacation" ...
From Jordan Peele to M. Night Shyamalan, from Black Mirror to Love, Death, and Robots, the influence of The Twilight Zone can be felt in every corner of the modern entertainment industry.