Afterlife is a white-box that is the center of creation. All celestial bodies and lifeforms (like black holes, stars ; humans, and all other animals) are in this space along with anything that has been created or could be created by somebody. There is no book related to the White-Box Theory, this post is all there is. (so far ig)
Person 1: "What do you think happens after death?"
Person 2: "I believe in the White-Box Theory"
Person 1: "tf is that"
Person 2: "Search it up on urban dictionary, I just wanna go to sleep"