A collaboration between Stimpunks Foundation and Helen Edgar (Autistic Realms), exploring the connection between Deleuze’s concept of the fold and the piezoelectric properties of bone — two ways of saying the same thing about what the neurodivergent bodymind is and does.
This essay grew from the Love You Down To Your Star Stuff page — specifically from the connection between the Crystal Under Pressure prose poem (on piezoelectric bone and star stuff) and the Transcendental Empiricism — Deleuze entry in Related Concepts. It is the connective tissue between them: the place where astrophysics and continental philosophy find they have been saying the same thing.
Two Discoveries
In 1957, the Japanese orthopaedic surgeon Dr. Iwao Yasuda published findings that changed how we understand the human skeleton. Bone, he demonstrated, is piezoelectric — a crystalline material that generates measurable electrical charge when placed under mechanical stress. The same principle that makes quartz watches keep time, that powers microphones and sonar and ultrasound, operates continuously inside the human body. Every step, every pressure, every encounter with the world causes the bone’s crystal lattice to flex, and that flexion becomes electricity. The outside becomes the inside. Force becomes light.
In 1988, Gilles Deleuze published Le Pli — Leibniz et le baroque (The Fold). At its centre is the claim that matter is not solid and bounded but infinitely folded — that interiority is never finished, that the inside is not separate from the outside but is the outside continuously folding inward. “A fold is always folded within a fold, like a cavern in a cavern. The unit of matter, the smallest element of the labyrinth, is the fold.” There is always a deeper pleat. There is always another cavern.
These two discoveries — one from orthopaedic surgery, one from continental philosophy — are the same argument.
The Piezoelectric Fold
Piezoelectricity requires a specific kind of structure. Not just any material generates charge under pressure — only those whose internal geometry is asymmetric at the crystalline level, so that mechanical deformation produces a separation of charge across the lattice. Bone achieves this through collagen fibres arranged in spiralling, layered patterns — folded at multiple scales, from the molecular to the structural. The fold is not decorative. It is what makes the transduction possible.
When Deleuze says the fold is the basic unit of matter, he means something close to this: that what we call interiority — inner life, inner experience, the inside of a thing — is not a sealed space separate from the world outside it. It is a surface that has been folded. The outside is continuous with the inside. The boundary between them is a crease, not a wall. And at the crease, something happens that could not happen on either side alone.
In bone, what happens at the crease is electrical charge. In experience, what happens at the crease is thought, sensation, affect — the raw material of consciousness before it is organised into categories.
This is not metaphor. The body is, literally, a system of folds that transduce the world’s pressure into inner charge. Yasuda proved it. Deleuze named the principle.
The Neurodivergent Bodymind as Fold
Helen Edgar’s work with Deleuzean philosophy is grounded in her experience as an AuDHD person and the insight that neurodivergent ways of being are not deviations from correct processing — they are different configurations of a fold.
A monotropic attention system does not move through the world in the tree-like hierarchy that neuronormative frameworks assume — scanning across multiple channels simultaneously, switching quickly between them, maintaining a broad shallow awareness. It folds instead. It goes in. One interest tunnel, one sensory channel, one attentional focus — and within that fold, extraordinary depth, extraordinary connection, extraordinary charge. The world outside and the interior of focus become continuous. The fold is deep.
For many neurodivergent people, the boundary between self and world is experienced as more porous than neurotypical frameworks expect. Environmental pressure registers more completely. Sensory information arrives less filtered, less pre-categorised, closer to raw encounter. This is not a failure of the filter. In Deleuzean terms, it is being closer to the crease — to the point where outside becomes inside, where the world’s pressure generates interior charge.
What the DSM calls hyperreactivity, Deleuze would call proximity to the fold.
What the DSM calls sensory sensitivity, Yasuda would call efficient transduction.
What LYDTYSS calls being made of star stuff, all the way down, is the same claim: the cosmos outside and the body inside are not two separate things. They are one continuous substance, folded into this particular configuration, generating this particular charge.
The Line of Flight from Pressure
Deleuze and Guattari’s concept of the line of flight — ligne de fuite — describes a movement that escapes a fixed structure, not through destruction but through becoming something the structure could not predict or contain. The rhizome spreads in a direction the tree’s logic cannot account for. The fold opens into a new interior that the previous map did not show.
In piezoelectricity, the line of flight is literal. The crystal under pressure does not simply absorb the force and stop. It converts it. The charge generated does not stay inside the crystal — it propagates. It becomes something: a signal, a current, a spark. The pressure becomes transmission.
Crystal Under Pressure — the prose poem in the star-stuff section — uses this dynamic exactly. The neurodivergent bodymind under systemic pressure does not simply suffer the force. It generates something. Not because suffering has a purpose — LYDTYSS is explicit that it refuses the “your differences are a gift” framework, which places the burden back on the person to be useful enough to deserve love. But because the physics of what we are made of includes this capacity, independently of whether it is noticed or valued by the systems applying the pressure.
The crystal does not generate charge for the orthopaedist who discovers it. It generates charge because that is what crystals made this way do.
The line of flight is not an achievement. It is a property of the material.
The Body as Cosmic Transducer
The star-stuff argument — that the matter we are made of was forged in stellar cores, scattered by supernovae, assembled over billions of years into bodies that can feel and think — is also, at its deepest level, a claim about transduction.
The universe outside became the body inside. Not by a clean transfer, but by a process of transformation across boundaries: fusion in stellar cores, explosion and dispersal, gravitational collapse, chemical bonding, biological assembly, crystalline structure, electrical charge, sensation, thought. At each stage, something crossed a fold and became something new.
The neurodivergent bodymind is not a malfunction in this process. It is one of the configurations this process produces — a particular fold, a particular sensitivity at the crease, a particular capacity to transduce pressure into charge and charge into transmission.
Deleuze says: matter is infinitely folded, and the fold is the basic unit.
Yasuda says: bone is a crystalline fold that generates electricity from pressure.
Sagan says: we are made of star stuff — the outside of the universe folded into the inside of a body.
LYDTYSS says: love you down to that level. All the way down to the fold. To the crystal. To the star stuff. L★S.
An Invitation
This essay is a beginning, not a conclusion. Helen Edgar continues to develop the Deleuzean thread in her own work at Autistic Realms — exploring the rhizome, the fold, monotropic time, and the neuroqueering potential of continental philosophy as lived by neurodivergent people.
Crystal Under Pressure and the Transcendental Empiricism — Deleuze entry both live on the Love You Down To Your Star Stuff page. This subpage is the connective tissue between them — the place where astrophysics and philosophy find they have been saying the same thing.
Written in collaboration with Helen Edgar. Helen’s own version of this exploration will appear at Autistic Realms. Her Deleuze work is collected at autisticrealms.com/?s=deleuze.
