If we're really gonna have a chance to figure anything out, I think we need to figure out the implications of Dark Worlds. Like, Determination and Save Points went to their full conclusion in UT, it begged the question "What if the game ran with it?" And Alphys did exactly that, figured out there was a differentiator between monsters and humans, tried to play around with Determination after figuring out how to isolate it. I kinda don't like this area of theories because it's kinda retreading the same grounds right, True Lab reveal and lore dump, but we have half of the game to go

If I was a monster in Hometown, and Dark Worlds are pocket universes made up of inaninate objects near a Fountain, I'd would ask
>What determines a Darkners personality?
>Is this intrinsic to our reality or did someone make up these rules? This would imply nature vs a creator
>How would Darkners know about us, our name, our history etc. if they're miniature?
These are questions a Lightner asked and is currently researching or found the answers to, and we don't know ehat they're up to, now