The fun thing about the universe murdergame is that we barely scratch its surface so, if you really want, you can fill in the blanks as you want.
The not-so-fun thing about the universe murdergame is that we barely scratch its surface so we don't actually know a lot about how things function.
But, arguably, this is a part of Homestuck, in that we only see the parts that are essential for the narrative.
Fate is a river, and sibling,