How do you mean?
Just joking about how far into the future Seswatha would have needed to have seen to plan the Dunyain and the Mandate meeting up 2,000 years later.
Hah, true enough. Just to be clear, I certainly should've mentioned that I was presuming the Seswatha homunculus still possesses sufficient volition to guide the Mandate towards the necessary direction (which I definitely think is happening on some level). This works with Kellhus hypnotizing Akka ("I must speak with him"). As far as we've been told, Kellhus does indeed speak with Seswatha, or something reminiscent of him, and from that he's granted the Gnosis, which unless Kellhus is lying (always a possibility), means that in some way Seswatha willingly gave the Gnosis to a Dunyain. It also has ties with Akka's ambiguous and timely dreams. As Bakker said (not verbatim), we should be more concerned with the
timing of the dreams, rather than the content, so much. Which, to me, implies that Seswatha is on some level intentionally guiding what dreams Akka has, in order for him to properly grasp the situation at hand and act accordingly. This also works with Fate and Akka. There's nothing special about him, really. He was simply the right man in the right place at the right time. He's the one that Seswatha needed to enact the plan (whatever it is), the one who happened to fill the right set of circumstances. And this, too, ties into an idea others have proposed (that I very much like) regarding Kellhus being the Messiah; it's not something a particular person was necessarily destined for, but instead it's a set a parameters that, once filled, makes that person the Messiah. Or in Akka's case, the Whoreson of Fate, the Chosen One of Seswatha.