Quote Originally Posted by EaraGrace View Post
Issues remain, the door to Elpis limits us to a very specific period of time, and you’d still have the issues I mentioned if you don’t attempt to replicate those magicks.
What issues? There's no indication that we are currently being inhibited to travel back to that time. And that specific period of time should be enough to interact with the necessary people to make a impact. What matters is that it is before the Final Days.

Quote Originally Posted by EaraGrace View Post
Exactly how effective the echo is with finding specific memories is difficult to say. Ultimately, the problem is that even if you convince them, you still have Hermes sabotage to deal with, and given he isn’t there to help with Zodiark now, it’s unlikely you’ll succeed at forestalling the first final days. It was SE who wrote that limitation.
The Ancients have more precise control over the Echo than the WoL. It's why Venat had you mount Argos and travel to that floating island. She was able to bring up the exact time that Hermes sent off the Meteia. As noted earlier in this thread, we have the answer that Hermes was looking for in our memories. With that answer, Hermes would have no reason to sabotage the plan, and work towards saving the star. It was a answer that Meteion accepted, and Hermes would see that. If for some weird reason he isn't convinced, the Convocation would still have the idea of Zodiark from you, as well as the mechanics behind it.

Quote Originally Posted by EaraGrace View Post
And yet we are shown why we should believe her judgement the correct one, if their reaction to the Final Days is indicative.
It's unknown what exactly Venat did, but it doesn't seem at all she told people the truth. We are shown why she did what she did, but this was done after the Final Days, and when there is a possibility that Zodiark tempered part of the populace.

Quote Originally Posted by Veloran View Post
But more importantly, Venat still didn't tell them even after Zodiark was created and the Final Days halted. At that point if Hermes had been crucial to their prior success, it had already been achieved and he had outlived his usefulness. At that point there is no excuse not to reveal the truth.
It's rather weird that Venat didn't reveal the truth to the Convocation AFTER the Final Days were averted.