Board Thread:General Discussion/@comment-32182236-20190716003715/@comment-32182236-20190718121833

Instead, we only have implications.

We have proof that if A happens, then B did as well.

For example, if Frisk killed all the monsters they have a chance to, then Chara destroyed the world.

We can still learn much of the characters this way, because all paths are canon, at least as alternate timelines. And the one true path is the one we actually play.