Quote Originally Posted by sihnfahl View Post
An alternate future version of herself did, though, and she's now in a loop where she's sending it back to fulfill what that other-future Kat wanted to change. Namely, Annie dying when she fell off the bridge.

If she didn't, then Annie would have died, and she'd be heading into that original future where she built the birds to keep Annie from dying. And she'd find out what it really would be like to lose Annie. (Except for the timeline where she DID, so yay, another timeline branch)

As for the dual Annie problem, that's going to be even crazier since both are teens ... which means that they're both from post-Annie-Rescue-By-Katbird timelines.
Well, naturally. She can only do the things that have already been done. She can't do what hasn't happened yet. Otherwise, causality is violated.
Here's the thing though, what bothers me in THAT case, is that having multiple timelines generally BREAKS the possibility for Paradox's and time loops. Being able to alter the past and create a new timeline means that no one has to do anything, and there is no chance of breaking causality because anything that would cause a paradox would instead create a new timeline. Dealing with multiple timelines, is more like dealing with multiple dimensions that can interfere with each other. The original Kat lived in a timeline where annie died after she fell off the bridge, and that what led her to make the original bird, meet the Norns and mess with time to save Annie; this in turn created a timeline/universe we see where Annie never died. Original Kat did something in the past that did not happen in her own timeline. Our Kat shouldn't need to repeat what original Kat did because the "annie doesn't die" timeline already exists thanks to original kat

For instance, Kat is sending her bird into the past and is creating each and every instance of when the bird appeared in the story; however according to the Norns when kat herself visits the norns in order to do any of this is not always the same... so like timeline requires that these events with the birds are written in stone and Kat herself has to perform them, but the timeline does NOT require Kat to visit the norns at any specific time and place, and say or do the same things. It doesn't really quite add up

Not to mention there were actually FIVE birds present when Annie was saved, and it only took 2 to carry her... so now would come the question of where those other 4 birds are coming from. Will kat send all of those birds, or are their other birds from other kats? And if those other birds are being sent by other kats, then that means that our Kat didn't need to do it, because her not doing it doesn't stop the other kats from doing it.