Hey about that “do you honor the authors of canon” or whatever post: My friend pointed out that it’s possible that the “author” may actually have been part of that universe in a past life, and remembered parts of it.

This is absolutely possible. The author of a work might well be kin from the universe they are writing from. However, many writers feel insulted when someone suggests that they got their ideas from anything other than their own creation, so I do not suggest that you assume that most, or all, authors are kin, without hearing from them.