system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:In our dreams, how are the people we have never seen or interacted with before conjured up?

I feel like I interact with humanoids when I remember a dream with someone I have never met before.
gpt
If you walk down a typical shopping street or visit a cinema or restaurant, you see hundreds of faces in the space of an hour that you'll never remember you saw. If you go to a music festival or sports event you'll see thousands that you'll never remember you saw. Even if you never leave your house and only watch TV, over the course of a few shows you'll see hundreds of extras whom you'll not consciously remember. Your eyes are pulling in unfathomable amounts of data all the time, your brain only selectively recalls some because if it recalled all you would be overstimulated to the point of not being able to function normally, but in dreams those bits and pieces can surface.