Yeah, the use of "related" in only one way is a pet peeve of mine. Relationships have many natures, and I think we all intuitively know that. I don't believe in arbitrarily enforcing one of those types as the only valid one. Notice I never said anything false. I just think it's fascinating to learn about those relationships and think about the things we can't know. It's not as though I imagined that they are super similar and then argued for that being fact ...