>>527561501
I suspect it was a thing that made sense in his head, and he ended up making the clues way too cryptic (ex. the post it notes, the code, the robot Afton family, etc.). I also suspect he made it ambiguous because he himself wasn't sure if that was the direction he wanted. I could be talking out my butt here- I assume the rise in popularity of AI led him to go down the Mimic path because that's more interesting and relatable. It also is less convoluted and allowed him to literally shape the Mimic into whatever he wanted it to be.
Personally, I love the Mimic and am happy it ended up going this route. I do hope we get another antagonist for the series, kind of like how Circus Baby/Ennard appeared in Sister Location.
