Board Thread:General Discussion/@comment-27524978-20160210030742/@comment-4383275-20160505213138

Invader Jib wrote:

Your evidence is "he bleeds" when that's not even certain. DT is canon - sans being human isn't. Sans is not visibly injected with DT at any point in the game, but breathing and not visibly turning to dust are unique to him. neither was undyne bruh

for all we know natural determination with monsters could in fact be a thing, as she evidences When does Sans ever act genuinely determined? He's not as lazy as he seems, as I've stated, but it's not determination that fuels him in the Genocide Run.

It's vengeance.

This follow-up to the original Game Theory video suggests that Sans is a revenant, a hollow, skeleton-like creature that exists solely for revenge. There's no reason to choose one video over the other, though. Sans could be a version of Ness that has been transformed into a revenant. This could explain why Sans seems more hollow, almost costume-like, than his skeleton brother. In fact, it might even make more sense than my Alphonse analogy earlier. No wonder Sans looks and acts the way he does, with his glowing eye and ambiguously skeletal torso.