What's the point with that quite lackluster story in Endwalker?

[Sicno]

I didn't follow the entire line of this but the Ancients knew about dynamis. Hyth mentions it. He says it constitutes a certain percentage of the universe. It's a similar percentage of the real life amount of dark energy in our universe so I think one of the writers was low key making a science joke.

Hythlo and Emet were in the dark about it, and when further questioning about why they've never heard of it (it's a lot weaker than aether and is impractical) and then why bother about it Hermes provided those numbers.

And yeah this argument has been going for a while but I'll try to recap: the original argument was that if the ancients had known about Meteion and that dynamis was the key for the Final Days they could have solved it but Venat held that info from them. Then someone argued that no, that because neither Emet nor Hythlo ever heard about dynamis and because of their stations that outrules other researchers from existing, so that means only Hermes-senpai was sugoi enough to do it and since he later sat in the Convocation that would have prevented Venat from convincing them of anything, he'd work against her. To which I replied that no, they mention it IS known to a small number of scholars, and that the obscurity of its knowledge could be attributed to impracticality so they would have pursued that knowledge as a mere hobby and that would explain why no entelechies were ever submitted to the Bureau so that neither Hythlo nor Emet know of the concept. But that if it was known that dynamis was the key they could have researched it more seriously, no longer as a mere hobby but as something vital for their survival and getting more people involved in such research. And the conversation has spiraled around that, trying to prove or disprove the possibility.