Time travel

There is a futur, year 207012, where a giant baby reign with opression (and mainly with lasers...) real futur or parallel futur ?

We know, they are travelers, their work is to correct temporal flaws with a lot of care.

In their time travel, Mabel and Dipper lived througt again periodes in the summer 2012, but suddenly it was winter, the mystery shack, around thirty years ago ! A man open the door, is he Stan, or another person ? (see Stan)

Why this is important ? Because there are terrible predictions about the future : The author and Bill Cipher (see terible disaster).