F!Spike: You two are gonna have a wild time in Ponyville, believe me.
Spike: What makes you think that?
F!Spike: Oh you should see the sort of crazy adventures we had. Trouble brews around town due to AJ not getting sleep, Twilight only getting two tickets for the Gala…ummm, running away from Twilight out of Jealously…
Spike: I WHAT!?
its interesting to think about the implication of time travel via a sustained portal like this rather than the typical teleportation/instantaneous jump methods. Instead of the usual instance where the timeline splits at a fixed single point where the travelling occurs, creating an alternate future where the future they’re coming from becomes detached and no longer happens(unless you consider all timelines simultaneously always existing), that future is instead still connected to the timeline after the split, meaning anything can jump back and forth between the current and old timeline, and the travellers can return to their timeline rather than travelling back to the future and ending up in the new timeline’s future. Also means that any changes they make don’t effect their original timeline, rendering the time travel and anything they do in the past kinda pointless for them.
Time travel in the show is a bit fucky though, because they’ve shown it to be both linearly self-fulfilling AND branching, so it could go either way.
