Aether Brain Hypothesis
Hive Bitch
May 27, 2026
The way I usually explain how alchemy works is the existence of two
magical substances. Essence is the fundamental basis of alchemy, and
it arises from the dreams and desires of a conscious brain. Why this
is so is oft-considered one of the great mysteries of the world. But
essence is innately unstable and reactive; whenever it comes into
contact with physical matter, combustion-subsumption results and
together they create limina.
This is the other, more outwardly obvious magical substance. Limina
has mass and more stability than esseence. It is able to coexist in
the physical world. But it can also shield essence from interaction
with matter, allowing it to persist.
Imagine pouring dirt into a puddle. At first it becomes wet and turns
into mud, but after some of the dirt is sacrificed to form that first
layer, the dirt piling atop it remains dry. Essence reacts to produce
enough limina to protect itself.
Essence has a lot in common with electricity; it flows and creates a
field for forces to act at a distance. Limina --- despite its mass
--- is exceptionally easy to reshape, especially by manipulation of
the essence field. The ancients called it "divine clay."
But I did not describe limina as stable, only more stable. If
starved of the flow of essence, limina will undergoes a kind of
collapse back into almost-ordinary matter. But since limina was so
easy to reshape, you can see a utility in this process: first
transform matter into limina, then mold it into a new form, then
siphon off the essence, and behold how easily you reshape the world.
Those with honed phyisical instincts may expect a conservation law. If
essence + matter = limina, and this product presists as long as there
is excess essence, then shouldn't the collapse of limina back into
matter also return the essence that created it? Otherwise, where does
it go?
The mathematics aren't so kind. Essence is changed through its affair
with matter; it cannot return with the same purity it once had.
Instead, it becomes a sort of anti-essence. Where essence could not
bear the presence of matter without reacting with it, this byproduct
is perfectly able to persist, clinging to objects like static fuzz. An
object imbued this way is considered transmuted.
With some abuse of language, we might refer to this "anti-essence" as
transmutation. And the distinguishing feature is that transmutation
violently combusts with essence, preventing the formation of more
limina, or that mysterious genesis of essence ex nihiho.
Because essence originates in the brain, and because the flow of
essence controls the form of limina, alchemists consider these
substances to form the soul, the chief organ for practicing
metaphysical work.
In a layperson, limina seeps throughout the body, circulating through
the blood, but without disciplined control of their essence flow, at
their extremities limina often collapses into transmutation, resulting
a messy patchwork of essence-laden limina and transmutation.
Matter cannot be shorn of its transmutated nature except at a cost of
energy --- even still, expelling the "anti-essence" often creates
explosive forces that threaten the structure integrity of the
transmuted object. In bodies, this means tissue damage. This is the
difficulty of the alchemists' first task: compleating the soul.
Simply burning away transmuted impurities would cause lacerations and
fissures throughout the bodies: it would prove swiftly fatal. Thus
the transmutation must be cleared away slowly, carefully. Slowly
enough that even as you remove one impurity, more transmutation in
being ingested or created by the body's metabolism. It is no mystery
why this process can take years.
But there's a further wrinkle. I mislead you, which I told you that
transmuted impurities arise through the laity's lack of control. No,
the fundamental contradiction of alchemy is that a single brain cannot
generate enough essence to compleat a soul. It is akin to flying by
tugging on one's own bootstraps.
The body bears the stain of transmutation as an inevitability, the
high banks of river will on occasion know the touch of its waters but
the flow is never sufficient to flood the it to the brim every day of
every season.
Even the wisest alchemists, acquainted with essence's origin in the
dreams of mortals, cannot generate enough of it, not at a rate
appreciably faster than the a lay fool. In this all mortals are
largely equal.
No, the only way alchemists are able to sustain themselves is by
supping on the essence generated by vigners and offered in the fruit
of their vines.
Hearing all of this, you would naturally come to the conclusion that
essence is a very scarce thing, as if each mind is mining some
precious gem from the inscrutable depth of the world.
This is the belief that the Aether Brain Hypothesis challenges.
It suggests that essence is in fact just abundant as the air
surounding us. Or perhaps not essence itself. Rigorously
formulated, this conjecture introduces a third class of phenomena: the
titular aether. Aether is furtive and unreactive, able to suffuse
every inch of the world without revealing its presence.
It is attracted to matter, trailing in its wake, and dutiful reënacts
its every motion. For this, theorists have been moved to imagine an
"astral plane", identical to the material world, but composed of this
aether pantomime.
This equivalance between material and aether is the Grand Symmetry.
But grand as it is, it is only notable because it not perfect. In
animate bodies, the aether counterpart diverges subtly from its
source. Romantically, we might imagine the astral imitation is unable
to cope with the vagaries of free will.
A more mechanical explanation is substances present in living bodies
are what break the symmetry. Small particles that interact with
matter and aether both, yet discriminate and perturb the symmetry.
Imagine inviting men and women to a dance, each paired with the
opposite gender. Now suppose someone tampers with the records, skewing
the balance of genders and making a confusion of the intended
organization. Instead of a perfect one-to-one pairing, strange new
dances emerge, multiple men competing for a woman (many to one) or a
man with several admiring women (one to many) or girls dancing among
themselves (zero to one).
Aether, remember, was supposed to imitate the behavior of matter. But
this imitation isn't idle --- aether does have mass. When it is
dragged in the wake of matter, matter likewise falls back to join it.
Because of the grand symmetry, this two-way interaction can be
ignored: aether's influence simply redundantly reduplicates the
motions of matter. When they diverge? Matter will be dragged astral.
Consider a one-to-many interaction. Here, several subdivisions of the
aether field have mappped onto the same material element, and as a
result, the stablizing influence of aether is disportionate. In order
for the matter to move, it must tug on not only the usual aether
hanger-on, but several others who cling to it.
Many-to-one are more interesting to contemplate, owing to the fact
that two objects cannot overlap in space, meaning that this aether
acts to synchronize several similar objects to a shared state.
Zero-to-one are the strangest by far. It is as if the astral plane
was twisted, subducted into itself, causing aether to imitate aether
as if it were matter. But this is self-referential, and consequential
any behavior becomes self-justifyingly possible.
One theory posits that "essence," "limina" and "transmutation" are no
more than phases of aether, geometric arrangements of this deviations
in the Grand Symmetry. But perhaps a rigorous reduction of alchemy to
aether is beyond the scope of this discussion.
Step back, and consider the true implication of this astral plane.
It's nothing less than a doubling of space, with profound implication
for processes which find themselves limited by space. Could Book could
be bound to take up half as much space if every page had not two sides
but four?
Remember that we supposed living things bore substances that broke the
Grand Symmetry. The Aether Brain Hypothesis proposes that the brain
deliberately alters its cognition across the material/aether split to
exploit the duplication. This aether divergence is used to not just
to accelerate thought, but to rapidly signal and synchronize across
cortices. It is in fact essential to the emergence of the unified
experience of consciousness.
Biologically, all brains would perform this operation to greater or
lesser extent, but it is of course the most acutely developed in the
most intelligent species.
If the sea of aether is everywhere around us, but only in brain is
there turbulence enough to subduct and create those zero-to-one
"bubbles" that are unbound to matter... have we not arrived at an
explanation of just what essence is, and why brains alone generate
them?
But what is unique about cognition? What stops us from isolated the
molecules that give rise to this phenomena and generating abiotic
essence, perhaps stirring them in a warm pot?
Key to what's happening isn't that the Grand Symmetry is breaking, but
that it's breaking in a structured, useful way. Why not create food
by putting amino acids into a warm pot and stirring it? Only
metabolism creates the proteins that life requires, and only brains
produce the emyra that is the true power of essence.
It is possibible for inanimate objects to produce noises, and animals
can produce complex calls indeed, but only sapient animals produce
language. And it is the complexity of emyra, the self-modifying
recursive flows of essence, that allow for alchemy as such.
But what happens if you insist on trying to replicate the production
of emyra through nonsapient means?
The result is chimeric.
Occasionally, especially through illness and defect, an animal may
secrete a surplus of the molecules responsible for symmetry-breaking.
M
Discussion in the ATmosphere