Quote Originally Posted by Iscah View Post
There is absolutely nothing to establish that as fact.
There is, and it's the 8UC short story they put up that established that an alternate timeline still exists where their own time machine had no effect on their own timeline (meaning their own time machine cannot interact with their own timeline). But I get it. It's a deeply convoluted mess, and you've spent a lot of time thinking about and seeing it a certain way.