So we all think that we’re real, and the center of our own universes, and life is just this web of interactions across timestreams(/threads in the tapestry of life/processing tools on the surface of the universe’s largest supercomputer). And we think that all we know is reality. What if we all are just stemming from one child’s (let’s call them “Kid” for simplicity’s sake) overactive imagination? Kid invents an “imaginary friend”, and it gets lonely. So they come up with another one. And takes things from their own life, like how various relatives are fighting, or their sibling gets a boy/girlfriend and puts them into the lives of their imaginary friends. And then Kid’s father drinks, so the one of the friends have an alcoholic father. Then one of the friends has a child, and Kid comes up with a life for the child, including spouse, house, and friends. It becomes a self-perpetuating miniature world inside Kid’s head. We all, eventually, just interact with a small part of the global nexus of people. What if the nexus we inhabit is just Kid’s fantasy?