Board Thread:General Discussion/@comment-27524978-20160210030742/@comment-464022-20160401092547

Since people appear to be going on about how Sans can tell how many times he's killed you; I think some people are forgetting that Undertale likes to break the fourth wall at times.

When you start your game you don't name Frisk, you name Chara. Chara is, essentially, 'you'. You are Chara. During the battle with Sans, he isn't fighting to stop Frisk, he's fighting to stop you. So when he makes those comments about how many times he's killed you, he's talking to you.

Sans also mentions that they have received reports about timelines jumping around, starting and stopping. He has knowledge of timelines and an understanding of time travel, but can't do it himself. He knows you can jump back in time and reset and even calls you out on it and knowingly mocks you through the fourth wall.

As for Matpat's theory, a lot of how I felt about it has already been brought up. I don't believe it holds any water at all and he was looking WAY too deeply into it without realizing it may have been simple references and nothing that connects the two universes together. In otherwords, it was like Matpat tried to make a big hit with the Gutsy Bat and missed like crazy.