For the third post-Hajimari theory, the wind directs us towards the possible worlds of Calvard’s web of lies.
After watching the epilogue of Hajimari no Kiseki, the player returns one final time to the True Reverie Corridor and gets to traverse one final level before finally being able to put the game to rest (until the post-game episode came out at least). The 4th floor’s end is guarded by a White Whale—a metaphor for God or Fate—carrying a Greek temple on its back. Specifically, the temple is either the Parthenon, the Temple of Athena, or the Temple of Artemis or Diana who to the Romans is associated with the Moon. In either case, the meaning is the same. God, the White Whale, is guarding some hidden knowledge on its back, and sure enough, the white stone received takes us to the Celestial Globe.
The episode begins with the Grandmaster discussing with McBurn the implications of his returned memories when they are first interrupted by Novartis over an incident in Ored likely involving one of the Thirteen Factories. Not long after, they are then interrupted again by the new president of the Calvard Republic, Roy Gramhart, who has been granted access to the celestial globe via technology provided by a new organization abbreviated MTSC (possibly the factory in Ored given the context). Gramhart proposes a two and half year truce allowing Ouroboros to work on its Eternal Recurrence plan unperturbed. Meanwhile, Gramhart can pursue his own plan to explore the “Possible Worlds”.
In every story arc, the name of the respective plan has been related to the Sept-Terrion (or pseudo Sept-Terrion) covered by the arc. The Gospels in the “Gospel” plan were tools used to communicate with the Shining Ring; the Azure-Zero project referred to the creation of the Azure Demiurges, the Sept-Terrion of Zero; and the “Blaze” in phantasmal blaze plan is one of the names of the Great One, a fusion of Ark Rouge and Lost Zem. We should expect the same is true for Eternal Recurrence and Gramhart’s plan. In this theory, I will argue that Gramhart’s plan relates to the Sept-Terrion of the Wind and attempt to outline how Big Wind and Possible Worlds are entwined in Calvard’s web of lies.
Possible Worlds
To understand how the idea of Possible Worlds relates to the element of Wind, we first need to know what is meant by a Possible World which is an actual concept in logic, philosophy, and metaphysics. Per wikipedia, “a possible world is a complete and consistent way the world is or could have been.” It’s basically a thought experiment. If X happened in the past, how would the present world be different or if X happens now, what will happen in the future? They are essentially worlds that exist within the mind which may or may not exist as an alternate reality depending on your philosophical interpretation.
The Sept-Terrion are in the simplest sense the elements that they represent in the abstract taken to infinity, and since Kiseki is using the eastern interpretation of the elements, Wind is the Mind governing rational decision making, the imagination, and intelligence. This effectively would make the Sept-Terrion of Wind the Supreme Intelligence (SI) which would allow it to perfectly simulate any “possible world”, and when a simulation reaches that level of detail, it effectively becomes indistinguishable from the real world especially to its inhabitants. Hell, the world we live in could be a simulation for all we know.
It’s easy to see how this would’ve been valuable to the Tribe of Wind which, according to Latte, would value intellect above all else. It’s basically a giant “what if” machine. They could live the good and easy life while the machine does the thinking for them just as the honeysuckle on the wind master arts card suggests. The failure of the tribe in this case can be guessed knowing that Calvard is the Land of Lies. The machine lied, or to be more accurate, events turned out differently than what was shown because, as Azoth wrote, unpredictable domains exist when human emotions are involved. Having relied on the Sept-Terrion to do the thinking for them for so long, they weren’t able to solve any problems that arose from deviations to the predicted model which would’ve happened not once but multiple times (it’s accuracy also likely dropped as a result of the collapse). The machine effectively became useless.
Mind’s Eye
However, if this was the only case, that would be boring and practically already done by the Demiurgos, so let’s instead look deeper into what Wind could do. Let’s start by looking at the lost arts for Sun, Moon, and Star—imagery which has long been associated with Space, Mirage, and Time. However, through the lost arts, the Sen arc has additionally associated this imagery with two lower elements each which have remained constant throughout the entire arc whereas the other lost arts have had their elements shuffled around. The interpretation that I have come up with is that elements are related to the abstract nature of the higher element associated with each art. In essence, Space is to creation; Mirage, to awareness; and Time, to change.
As a lost art, the Sun has the two lower elements of Fire and Wind or Spirit and Mind which when you think about it are the creative elements. Art isn’t just paint on a canvas; a statue isn’t just a pile of stones. They are reflections of the beliefs and values of their creator given physical form. Indeed, it is the spiritual realm that houses the souls of the dead because people’s values live on long after their death. Likewise, engineering is taking ideas in your head and then building those ideas in the real world. 
What was originally just a concept is now an airplane, car, or back scratcher. The power to create is defined as “to bring into existence”; existence being the physical world. We have already seen that Fire has the ability to bring spirits into the world or even completely merge the two realms (though that may have only been because of Earth being fused with Fire). It’s not that big of a leap to assume that Wind can do the same but from simulated or cognitive worlds.
We, in fact, have already seen both possible powers on a smaller scale with Sunshine Agnes (which had a ton of imagery linking the magician Agnes to the element of wind). Agnes has two main powers. The first, which is introduced early on, is foresight allowing herself to visualize a small part of a “possible world” should the current chain of events continue. The second, which is only revealed at the end, is more mysterious and difficult to describe. It’s almost like psychokinesis but more potent. If I were to describe it with words, it’s bringing your own “possible world” or Mind’s Eye into the real world—just as Big Wind should be able to. Coincidently, the symbol on the Master Arts Card is an eye.
From Another World
By bringing things or even people from other possible worlds, they could establish prosperity in their possible world building their own paradise on earth which is interesting because the “heaven” lost art card in Hajimari is associated with Mirage, Time, and Wind which describes what this paradise was—a grand illusion brought forth by the imagination of the SI. Let’s assume this process is semi-automatic since the tribe that values intelligence above all else would trust the judgement of the SI. Due to shenanigans involving the great collapse, the SI started bringing things or people into the world that no longer were for the purpose of benefiting the tribe. Instead, its purpose shifted towards leading the tribe—no, the world—towards ruin.
One thing that I’ve argued in the past is that during the great collapse, the Sept-Terrion became decoupled from the other elements, in particular, the element which has domination over it. For example, Lost Zem stopped taking commands (wind) from the Tribe of Earth and Ark Rouge stopped listening to the pleas (water) of the Tribe of Fire. In the case of wind, values (fire) are basically what set the frame of reference for logical decision making. The default frame of reference without the influence of the spirit is nihilism. The most logical state of existence is, as NISA called it, primordial nothingness.
Harbinger of the End
Based on this, I’m going to make a pretty big claim. Both the main antagonist and protagonist are people from other worlds brought forth by the Sept-Terrion of Wind to lead the world towards the end. This lets Falcom intrinsically link the protagonist and antagonist together, capitalize on the isekai genre which is currently popular in Japanese media, and borrow ideas from characters in 2000s’ rpgs such as Luke von Fabre from Tales of the Abyss and Tidus from Final Fantasy X. It also plays right into the theme of lies with the protagonist’s very existence being a lie.
As I mentioned early, the SI is able to perfectly simulate other possible worlds to the point that the people in them wouldn’t be able to tell it’s a simulation. To them, it’s the real world which has its own copy of each of the Sept-Terrion including the Sept of Wind. These Septs of Wind then simulate other worlds including the world that simulated it creating an infinitely large web of possible realities. What is real and what is fake is not properly defined. Worst case scenario, if the Sept gets shut down in one possible world, it causes a chain reaction which erases all possible worlds.
However, this is unlikely because there are still two more arcs after Calvard and everyone knows the Sept will be gone-zo after the arc is finished. However, it wouldn’t surprise me if the antagonist believes this to be the case, traveling (really just being copied) to a new world to save his own (and himself) from destruction. However, all he really will be doing is leading the current world towards ruin. The protagonist would be willing to sacrifice themselves for this world which is their new home.
Other players
I want to end this theory by discussing what roles other known players could fill in the arc and I want to start with the paradigm that I introduced in my previous Calvard theory, “Land of Lies”. You have the protagonist and his party which represent the theme which in Calvard’s case makes them truthseekers. Then you have two sets of villains for the first and second part of the arc.
The first set of villains represent the opposition to the party meaning that they would be individuals who use lies or try to keep the truth hidden. Based on the little information we have so far, this would be the Organization which uses fear to control people and seems to operate as a sort of Illuminati organization. Based on Latte’s theory and Nadia’s dialog about the Emperor in 3&9, their leaders seem to be highly intelligent and see themselves as above everyone else—an evil Mensa society—which leads me to suspect that they are remnants of the ancient Tribe of Wind.
While all their actions were meant to benefit themselves, they were really just benefiting the true antagonists who represent the contradiction which would be those who seek the truth but use lies to get it. My opinion hasn’t really changed in the Last year so I still expect this to be Gramhart and the CID. As for the rest, it’s anyone’s guess who will get caught in Calvard’s web of lies.