>>82155404More than once we see John return to a scene we've already seen him retcon into. The first time we saw it there was one John, but when he returns there are two. That's because he's altering the alpha timeline, so the clones weren't always there.
The characters also explicitly talk about it altering the alpha timeline.
JOHN: this isn't a doomed timeline.
JOHN: i'm telling you, i can change things.
JOHN: stuff that wasn't supposed to be changed.
JOHN: and i'm not saying bad stuff won't happen as a result of the things i change...
JOHN: but at least it won't make a doomed timeline!
JOHN: the new things that happen will just be...
JOHN: the stuff that's supposed to happen?
DAVE: huh
DAVE: thats pretty dope if true
DAVE: actually in a way that almost makes me more nervous
JOHN: it does?
DAVE: yeah messing with the alpha timeline
DAVE: i mean not the alpha timeline but the ALPHA alpha timeline
DAVE: almost seems
DAVE: heretical i guess?
DAVE: you sure you know what youre doing egbert
JOHN: um, earth to dave.
JOHN: i already said i don't have a clue what i'm doing!
DAVE: gotcha
DAVE: welp im sold
