The original knowledge of NPCs or how I learned it, Backdrop People from Dolores. They are to fill in for our own reality while here in a body. Since they have little soul, they aren't fully functioning people altho they live like one. Some are holographic and are just put in and those are ones who glitch and like to repeat themselves. All of her knowledge came from hypnosis sessions of thousands of people. She has a channel on YouTube with tons of videos on lots of subjects from this to us volunteer starseeds (lightworkers et al) which you know you are one or not. It's not a ego label, it's our job we volunteered to do.
https://www.youtube.com/watch?v=M1LiK7T0L2E&t=16s

Also if you want to learn more about this earth and it's quantum entanglement in how all of the dimensions/densities work here
https://www.youtube.com/watch?v=4tYA3Gl1R7o