Nah, you're right, that's not he.
It does vaguely look like him, with a passing glance though. I doubt that was an accident.
Lol I got a whole 8 minutes in and stopped. Pretty funny that there's about 1-2 people in the audience that consistently laugh at what I imagine are jokes, not that I understood a word of it.
Intellectual humor, go figure. Not really funny, but clever in a way that is novel and so, imitates humor. I definitely chuckled at a few, like "the postman rings twice, but the post-human rings thrice."
Anasurimborges is an interesting turn of phrase. Makes me think there is something analogous to The Garden of Forking Paths and the TTT. That short story by Borges is a very literary and philosophical take on multiverses and contingent conditions for events in the future. Not to mention literature itself is described as a labyrinth a la Thousand Thousand Halls, something to navigate infinitely.
My guess is that the mention is something of this aspect of The Garden of Forking Paths:
Ts'ui Pên's novel attempted to describe a world where all possible outcomes of an event occur simultaneously, each one itself leading to further proliferations of possibilities. Albert further explains that these constantly diverging paths do sometimes converge again, though as the result of a different chain of causes; for example, he says, in one possible time-line Doctor Tsun has come to his house as an enemy, in another as a friend.
As we know, time on Earwa is not exactly linear, so what if the Thousandfold Thought is simple the following of the one (or "a one") thread where Kellhus succeded? So, we ask, how could all these improbable things work out? The answer is, this is just the one time (place?) where it has.
The Second Apocalypse, "second" as in an interval measurement of time as opposed to an ordinal number is something that sounds very relevant and interesting. But I don't have the brainpower to parse exactly what it's supposed to mean.
This is pretty hard to unpack. It's difficult to know if Bakker is just being cagey with some fun word-play, or if this was a part of the series always. I think it is a little of both, The Second Apocalypse being a play on several things, not the least of which being Second Apocalypse to Bakker's much bandied Semantic Apocalypse.
Consider though, that Bakker has always had an interest in the incremental nature of time, see this paper here (https://www.academia.edu/1502945/The_Last_Magic_Show_A_Blind_Brain_Theory_of_the_Appearance_of_Consciousness), page 11 (no need to download it, you can see it in the preview) and I don't believe in coincidences.