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>Terapagos has literal Turtles All The Way Down symbolism
>Terapagos is the reason the professor is summoned and we trade books with them
>the professor proposes there may be alternate timeline shenanigans afoot
>obviously SV's events can't play out correctly without the professor's beloved copy of Heath's book remaining in their present
>you think back to/go read the underdepths journal and find out the professor had a very similar experience matching what happened at the crystal pool, except no mention is made of trading books, only receiving a white book
>"Huh... So how did THAT happen, then?" you ask yourself: then you suppose an alternate timeline version of the protagonist is responsible for our timeline's professor going schizo... then how did the alternate protagonist wind up in that situation? why, because another alternate protagonist gave the white book to THAT professor causing them to go schizo, of course! but then...
>naturally attempting to further grasp the chain of events that led to our timeline's professor going schizo results in an infinite backwards progression of the same thing over and over again
>I.E., it's metaphorically Turtles All The Way Down, all caused by the LITERAL Turtles All The Way Down Pokemon
I don't understand what's so hard to get about this. That's the point they wanted to convey, anything else was a coincidental side effect.