@imercenary  
You’re new to Doctor Who, aren’t you?

Meh, time travel stories.

@Background Pony #2228  
While they aren’t able to prevent that future by using future knowledge, they’ll still save that future once it happens.

@Background Pony #2228  
No, it wasn’t. They still saved the world, they just don’t remember it.

@Background Pony #2228  
It’s not pointless, it all still happened (or will happen, rather), they just don’t remember it.

Twilight turns to the dark side, gets burned alive, become a demon, and the ponies became extinct, in 1995

Good things don’t last in this story because in my headcanon, equestria becomes new mobius

Well so basically the entire adventure was pointless. But hey, at least you had fun right? 🙂