Hadn't noticed this thread until now but this is very specifically something that, IMO, requires a better explanation or I will consider it a really dumb way of cheating with character knowledge. Aurang's not portrayed as being stupid -- quite the opposite -- but nor is his memory all THAT bad compared to the Nonmen (in fact compared to them his memory is fucking great). We have no idea even how old Aurang and Aurax, but it's gotta be pretty damn old. Considerably more than 10,000 years, most likely given what we've been told?
All that being said, I don't actually think it's something RSB is pulling a cheat with -- but I do think it ultimately leads to a certain conclusion, which is that the Dunyain have *always* been at the head of the Consult, or nearly always, and that they probably have inadvertantly set in motion a cyclic pattern to the state of Earwa.
They are, I think, slaves to the World, like the gears that make the whole thing happen *no matter what*, though really they are simply cogs in greater machine, one which I suspect the No-God walking (feeding) acts a sort of "Final Cause", only it's not *really* final. The entire point of the No-God (as the Dunyain see it) is something to be used as weapon in order to leave a highly specific number of individuals alive.
I don't think the World can actually be closed, because the No-God doesn't want it to. Why would it? The No-God, for whatever reason, hungers for something very particular. Recall how the No-God repeatedly 'fed' on the people of of Wraeleoth (?), then let their population grow back up only so that it could feed once again. This seems like a microcosmic version of the macrocosmic reality in Earwa.
But this seems, to me, to be a standard Dunyain fuck up. The No-God is not something which one conspires to make happen, but rather the World will literally arrange itself -- by *any means* -- to accomodate the No-God. Think of how barely the entire thing scraped by? Even Kellhus, who is heavily implied to be virtually capable of anything the World requires of him, is absolutely essential to the creation of the No-God. And the Consult itself, two inchoroi only were left for millenia, their greatest Nonman member suffering from its immense age and clearly mad -- and Shauriatas, allegedly now defeated. This last one I don't buy for a second. Shauriatas is literally called Death-Cheater, he is already a disembodied spirit, and I don't see him being out of the series and done with.
Ishual seems more like a No-God breeding project than anything else to me. And the Dune parallel is pretty hard to shake. Perhaps Kellhus was (like Paul) originally believed to be a Kwisatz Haderach of sorts (we know he was a prodigy), but like in Dune, they were off by a generation. And so just like Leto II, Kelmomas the child is transformed into an eldritch abomination of tremendous power.
I lost my train of though, but yeah. This bothers me and I don't think it's an accident lol.