1. Elias (The FBI therapist):
//He planted those books under Prairie’s bed AND the violin in her closet. First of all, before Prairie went blind, she was russian, so she knew how to read in russian. Those books were english. So she knew how to read in russian (i’m assuming) and braille, and its not likely that she learned how to read that quickly after being found again. Also, she was playing her violin in New York when she met Hap. How did she bring it back home? So what was Elias doing at her house in the middle of the night? Some people think he’s working with the government to cover up stories about NDE’s, and some think he’s working with Hap to discredit her story.
2. Her real world friends are different versions or her captive friends:
// In the final episode, there is a scene where French looks at himself in the mirror and sees Homer looking back at him. They both have a cut on their forehead, along with the fact that they’re both athletes. In another scene Buck is walking to the house when he passes red flares in the road, along with a red backpack. Rachel describes her NDE being in a car accident, with a red backpack nearby. Could it be possible they’re versions of each other in different dimensions?
3. Rachel AND Hap are FBI agents:
// Something is off about her. At one point, all the plants in only her cell were dead. That has to be some kind of clue, but to what? Also, she is the only one unable to receive a movement. Hap doesn’t seem concerned about this, maybe because they both are conducting the experiment together. Maybe Rachel never even had an NDE, and is just gathering intel. The biggest piece of evidence for this is a scene in an office, where Prairie’s parent’s are talking to Elias (episode 7). On the wall, written in braille, its says RACHEL. It proves nothing honestly, but why would it say Rachel on the wall? It certainly means something. For this one, there’s barely evidence but it’s cool to think about.
These are just 3 of my favorites. I stole them from this website oops, but it gets me thinking and I thought I should share. If you haven’t watched The OA yet, go watch it. And feel free to write your own theories on this.