Endwalker was a great mess(SPOILERS)

[Shuuli]

My question. If Hyda knew everything after our escape from Hermes

1. Why did she not try to explain the situation to the convocation? The Final days did not come 1 day right after our returning to the current time. The ancients did try to be quite open minded about all sorts crazy things happening around them. (Even if Emet was a bit reluctant at the beginning due to his depiction in our story) I cannot believe that they would not have tried to solve the problem with Dynamis in another way then summoning Zodiark.

2. If Hyda knew everything, why from the beginning to the end she did never say anything to US???
Was she afraid that she would change the future and we would never go back to the past? How so when WE could not change the future from the past before?

And these questions are the ones that make time travel strange. Again, Graha could create an alternate timeline and change the future, so why could not we?

Time travel will always have this issue that staying consistent with it is pretty hard.

But all in all I liked the full story, it just will raise some questions in the heads

[Nekaru_Infitima]

Was she afraid that she would change the future and we would never go back to the past? How so when WE could not change the future from the past before?

Yes.

When she meets us and says the times have now converged, after confirmation we went to Elpis that's when she KNOWS that you completed the loop and it's safe to talk. Anything before that could have changed the timeline of what we did and threaten us never going back. She knows we went back obviously but doesn't know WHEN in the present timeline that we did.

We told her what she would do and she had to play that part to a T, but we also told her how she acted in saying nothing about this so she also had to act that as well to complete the loop. If she changed anything about any of it, that's when things could change. If she told us on the ship, it could have made us do something different. She had to make sure she and us did everything that we told her happened, as well as let the natural flow cycle.

If she tried to tell the convocation it would change things as we told her she didn't work with them. The entire point is to line the times up and create that flow NOT to create a divergent timeline.