subdee

I don't remember everything from the movie explanations anymore, since it's been a while since I saw it. But it seems that there's only one dreamer, and the other people are just wandering around in that person's dream. So the architect teaches the world to the dreamer. Presumably they're all trained and have experience in holding dreams together and not forgetting the important parts. Those who are wandering around in the dream can also add to it-- the guns, Cobb's freight train and Mal, et cetera. That was my understanding, at least . . .