Bouleversement is the non-space/non-point at which we realize that Hans and the moon-man are one and the same in an infinitely looping narrative action, that Arthur Pym has fallen out of his text, or that The General is a speaking text.
The bouleversement
Try not to think of “bouleversement” as strictly a 1:1 flip-flop or exchange. A closer analogy might be an inversion point or sort of wormhole, but it might just as well be defined as that (geometric) point at which the navel-gazer disappears into himself, or perhaps better, the (chronological) flashpoint at which this occurs. For an image, play with a thaumatrope, just as one would do in 1835.
The bouleversement is the moment of transformation within your perception, a secondary, not primary action within cognition. Injecting the bouleversement into a piece of fiction probes the point at which perception becomes interpretation becomes knowledge. Does “belief” then become irrelevant? Let’s not get hysterical.
In a Poe hoax the bouleversement exists briefly, and is perceptible only at the moment of recognition. It is both the spark and the recipient of the shared hoaxing moment. It is self-generating, then flares out. It is The Turning Point.
I Ching Hexagram 24. Fu / Return (The Turning Point). https://www.iching-online.com/hexagrams/iching-hexagram-000001.html. Accessed March 28, 2022.
It exists only within our minds but is deeply rooted within the text—Poe always undercuts the attempt at “interpretation” that might trend toward loftiness with an in-your-face exposê of the reading situation, a tête-à-tête grounded in smeary type smashed into virgin paper stock. The mercenary undercurrent of trade intrudes at this point but only when we pull out of the text to consider social consequences. Let’s not; the thing at hand is bouleversement.
At the bouleversement, energy feeds within itself. Like a self-sustaining wormhole, it is both parasite and host simultaneously.
https://www.sciencenewsforstudents.org/article/could-spacetime-ripples-point-at-wormholes. Accessed March 28, 2022.
Any fixed image of course results only in distortion, but this comes close to representing the moment of recognition in the twin but united planes; the bright flash would represent the moment of recognition in my scheme. It might not always be “flashy,” but it will be an instantaneous and profound shift in thought by definition.
Perhaps a better illustration would impart the feeling of transformative power of the bouleversement through a blur effect (only because it’s traditional for implying motion):
Is the motion inward or outward?
Once experienced, the bouleversement lingers in the consciousness. The experience cannot be undone, just as a bell cannot be unrung. It is the entranceway to solving the hoax, instantiates the moment of recognition, and yet it does not exist. At least not in any way that we can describe “normally.”
We can say that the bouleversement in a Poe hoax:
exists only within the reading mind (perhaps as a lingering and disquieting subversive element)
is trans-dimensional, that is, the fictitious “characters” of the narrative can become typeset characters that jump off the page into our lives (cf. Racism in Pym)
is indicated only by non-announcing puns and sideways allusions
No “true” Poe hoax exists outside this definition; the bouleversement is its constituent component—a hinge point, if you will. The other hoaxical tales are supplementary and reflexive pointers. Why does he do this? What is he working out?