This is something that's been posted about before, but the theory that you can meet anyone/anything in the Backrooms. Because they stretch over all of "reality", you could theoretically meet anyone in the backrooms, dead or alive, because its possible another version has wandered in from another dimension or reality. However, the caveat is that they may not be the person you knew/expected. Imagine you (male in this example, for theories sake) meeting your dead father in the Backrooms, but he doesn't remember you because he has a daughter, not a son. Or meeting Ganondorf from LoZ, but he's kind and a sword master. That's a theory that I would love to see someone do something with.
Where am I? What is this I'm writing? Might this be another version of me? I always thought this might happen…