Warning: the following contains SPOILERS for Severance.
Severance revolves around Lumon Industries' memory-splitting brain chip, a piece of technology that's shrouded in mystery – however, one genius theory could explain the true purpose of this revolutionary implant. In the dystopian world of Severance, it's common knowledge that anyone who undergoes the terrifying process of severance experiences a bifurcation of memories. Despite the controversial nature of this procedure, Lumon is surprisingly open about how their chip divides a person's brain between an innie that works in the office and remembers nothing about their personal life, and an outie that knows nothing about what goes on at work. That said, Lumon remains very secretive about the work that severed employees do, not only to the employees themselves but to the public at large. This could be because the severance chip has an even darker purpose than anti-severance activists imagine.
When severed floor boss Harmony retrieves Petey's severance chip during his funeral, she returns to the office to show it to Milchick and says, “That's Petey.” In any other show, this could simply be construed as Harmony saying that the chip was the one inside Petey's brain. However, in a show that's focused around a dystopian company's clandestine and sinister operations, it's safe to say that nothing is what it seems.
Related: Severance: Are Code Detectors Real?
Severance's take on dystopian sci-fi has prompted its fair share of fan theories, and one theory (via Reddit) proposes that Harmony is actually saying that the chip is literally Petey, meaning that the severance device is a memory chip. According to this theory, the chip takes over the job of recording a person's
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