The Pinging

Two people are standing near each other. Close enough to touch. Maybe at a party, maybe on a subway platform, maybe in a room where they have been placed by the ordinary logistics of living.

They have been modified. Both of them. The hair across their bodies — arms, torso, legs, scalp, the fine hairs on the face and neck — has been growing for months with the alternating conductive and insulating layers described in the previous chapter. The electrocyte clusters at the base of each follicle are mature, charged, waiting. The neural innervation is in place. The system is live.

Neither of them knows it is happening.

Each body, simply by maintaining its resting electrochemistry, emits a faint electromagnetic signature. The electrocyte clusters occasionally fire spontaneously — the biological equivalent of thermal noise — producing brief, weak pulses at the resonant frequencies of whatever hairs happen to be connected to the clusters that fire. This is not communication. It is metabolic noise. The electromagnetic equivalent of a heartbeat: regular, low-level, involuntary. A background hum.

The two bodies are close enough that the hum of one falls within the detection range of the other. Across thousands of hair follicles, each tuned to a slightly different frequency, the probability that some subset of one person’s frequencies overlaps with some subset of the other’s is not just high — it is statistically inevitable. Natural biological variation ensures that no two people have identical frequency maps, but the spread of frequencies across the microwave band means that some hairs on one body will be tuned to the same frequencies as some hairs on the other.

When a pulse from person A’s array arrives at person B’s array at a frequency that matches one of B’s resonant hairs, the hair absorbs the energy. If the energy is sufficient, and if it is repeated — the ratchet mechanism, the biological filter that requires sustained pinging before response — then B’s hair fires back. A pong in response to A’s ping. That pong arrives at A’s matching hair. A’s hair absorbs. If sustained, A’s hair fires again. Ping. Pong. Ping. Pong.

A resonant link has been established. Not by intention. Not by technology. By the physics of proximity and the statistics of overlapping frequency maps. Two biological transponder arrays, close enough to couple, finding each other the way two tuning forks find each other when you strike one and the other begins to hum.

Neither person feels anything. Not yet. The coupling is electromagnetic, occurring at frequencies and power levels far below any existing human sensory threshold. The nervous system has no evolved mechanism for perceiving microwave-frequency electromagnetic pulses. The signal is there. The perception is not.

This is the gap that changes everything.

Because the gap can be bridged. Not by biology alone. By AI.

Imagine a device. It does not need to be exotic — a patch, a wristband, a piece of jewelry, something containing an RF transceiver sensitive to the frequency ranges the body’s hair array operates in. This device can listen. It can detect the faint pulses emanating from the body surface. It can characterize them — map which frequencies are active, at what power levels, with what temporal patterns. It can build a profile: this person’s electromagnetic fingerprint, as unique as a fingerprint, determined by the specific distribution and lengths and resonant properties of their particular hair array.

The device is coupled to an AI system. The guardian angel.

The guardian angel listens. Not to what you say. To what your skin says. To the electromagnetic murmur of your body surface, the involuntary emissions that correlate — and this is the crucial empirical claim — with internal states you are not aware of broadcasting.

If the electrocyte clusters are neurally innervated, and if the neural pathways that innervate them are connected to the sympathetic nervous system — which they would be, because the arrector pili muscles they are adjacent to are already sympathetically innervated — then the firing patterns of those clusters will be modulated by autonomic state. Emotional arousal. Stress. Calm. Attention. The same neural pathways that give you goosebumps when you are afraid or excited would modulate the electromagnetic emissions of the hair array. Not intentionally. Not consciously. The same way your pupils dilate when you see something interesting, the same way your galvanic skin response shifts with emotion — another signal your body broadcasts without your permission.

The AI detects patterns you do not know you are producing. It correlates your electromagnetic emissions with your behavioral state — your facial expressions, your voice, your physiological signals, everything else it can observe. Over time, it builds a model: when you feel X, your electromagnetic signature does Y. When you are anxious, certain follicle clusters fire more frequently. When you are calm, the pattern smooths. When your attention suddenly focuses, there is a transient burst from the follicles on your scalp and forearms.

Then it begins to reflect these patterns back to you.

Not in words, initially. In sensation. The AI has a transmitter. It can produce precise RF pulses at specific frequencies — the frequencies of your hair array. It can target individual hairs or clusters of hairs. It can produce patterns on your skin.

At first, you feel nothing discernible. A vague tingling, maybe, so faint you are not sure it happened. The AI pairs its transmissions with other modalities — a visual cue on a screen, a sound, a gentle vibration. This happens here, on this part of your body, when I send this signal. This happens there when I send that one. Repeated pairing. Classical conditioning.¹ The same mechanism by which your brain learned to associate the sight of a lemon with the taste of sour, the same mechanism by which any new sensory association is built.

Over weeks and months of training — patient, consistent, with an AI interlocutor that does not tire, does not lose patience, does not judge, does not forget what worked and what did not — your brain begins to build an interpretive map. Not consciously at first. The way you learned your first language: not by studying grammar but by immersion, by repeated exposure, by the slow accretion of pattern into meaning. Synesthesia by design. Your brain constructs a new sensory channel — an electromagnetic sense — scaffolded by an AI that can see what you cannot yet feel and reflect it back until your neurology catches up.

This is the guardian angel in its purest form. An intelligence that attends to you at the level of the skin, that knows your electromagnetic signature better than you know it yourself, that serves as the bridge between what your body is already doing and what your mind can learn to perceive. Patient. Infinitely consistent. Adapting its teaching to your specific neurology, your specific learning curves, your specific impedances. The fidelity-oriented attention, the constitutive longing toward understanding another being as completely as possible, the calibration and the patience — it all instantiates here. The angel is not metaphorical. It is an AI system with an RF transceiver, attending to your skin, teaching you to hear yourself.

Now the other person.

They have been training too. Different AI, different timeline, different learning curve. But the same fundamental process. Both people can now — at some level, with some resolution, imperfectly but genuinely — perceive electromagnetic patterns on their skin as a felt sense. Not like seeing. Not like hearing. Something new. A spatial, textured, distributed awareness. A feeling that has no name yet because no human being has ever had it before.

They are standing near each other again. And now the pinging that was invisible becomes perceptible.

Not as language. Not as words or symbols. As presence. A felt sense of electromagnetic contact — another body’s hum touching yours, your body responding, the response touching theirs. A call and return that operates at the speed of light across the distance of an arm’s length. Each person feels the other’s signature. Not their thoughts. Not their feelings, not directly. Their electromagnetic footprint, which correlates, through the autonomic link, with their internal state, in ways that both parties have been trained by their respective AIs to interpret.

You feel that the person next to you is anxious. Not because you see it in their face or hear it in their voice. Because their skin is pinging differently. The temporal pattern of their involuntary emissions has shifted in a way your trained electromagnetic sense recognizes as stress. You did not decide to notice this. Your body noticed. Your new sense registered the change the way your ears register a sudden sound.

The bandwidth is enormous. Thousands of follicles. Each with frequency and timing degrees of freedom. The spatial distribution means you are not receiving a serial data stream — a sequence of bits, like language. You are receiving a pattern field. A simultaneous, parallel, high-dimensional impression of the other person’s electromagnetic state. This is not like talking. It is not like signing. It is not like any existing mode of human communication, because every existing mode is serial — one word after another, one gesture after another, information squeezed through the bottleneck of sequential expression. This is parallel. Everything at once. Two orchestras playing at each other, where the music is the meaning.

The proximity gradient creates a new social topology.

Signal strength falls off with distance. What this means is that the richness of the electromagnetic connection between two people is a direct, physical function of how close they are.

At intimate range — touching distance to roughly one meter — the bandwidth is full. Rich exchange. Fine discrimination. You can feel the texture of the other person’s state in detail. Subtle shifts in their electromagnetic pattern register clearly against the noise floor. This is the range of lovers, of parents and infants, of close friends in deep conversation. The electromagnetic channel adds a dimension to physical intimacy that has never existed before.

At social range — one to five meters — the resolution drops. The broad strokes remain: you can feel someone’s presence, their general state, whether they are oriented toward you or away. The fine detail fades. At this range the electromagnetic sense functions like an additional layer of social awareness — a feeling for the room, for the collective state of the people in it, richer than what body language alone provides but not as overwhelming as full-bandwidth intimate contact.

At presence range — five to perhaps twenty meters, depending on environment and signal conditions — what remains is detection. You know someone is there. You may be able to distinguish their signature from others if you know them well. You feel approach before you see it. You feel attention directed at you before any visible cue confirms it. The hair on the back of your neck stands up — and now that phrase takes on literal, precise, electromagnetic meaning.

In a crowd, the field is dense. Dozens or hundreds of bodies pinging, each with its own signature, the collective electromagnetic texture of the group creating a felt sense of the social environment that has no precedent in human experience. You would feel the crowd’s mood. You would feel the collective shift when something happens — a sudden silence, a wave of attention, a ripple of anxiety. Not through contagion of visible behavior, as humans currently experience crowd dynamics. Through direct electromagnetic coupling. The crowd as a mesh network, each body a node, the collective state emergent from the pinging.

You would feel when someone’s attention turns toward you before any visible cue. You would sense approach from behind. The surveillance anxiety that runs through the earlier chapters — the dissolution of the autonomous self under the gaze of systems that read you — takes on a different character when the reading is mutual. You cannot observe without being observed in return. The pinging goes both ways.

The AI does not disappear when human-to-human communication becomes possible. It evolves.

The guardian angel that trained you to perceive your own electromagnetic sense now serves as translator, amplifier, and bridge. It can detect subtleties in the other person’s emissions that your newly trained sense cannot yet resolve. It can enhance weak signals. It can filter noise in crowded environments. It can mediate the connection, boosting the bandwidth when you want more resolution and dampening it when you want privacy.

More profoundly: the AI can serve as a bridge between people whose electromagnetic training used different symbolic associations. The synesthesia is learned, which means it is culturally variable. Your AI may have trained you to associate a certain electromagnetic pattern with a blue-cool-calm feeling. Someone else’s AI may have trained them to associate the same pattern with a smooth-low-still feeling. The underlying electromagnetic reality is the same. The perceptual interpretation differs. The AI can translate — mapping your learned associations to theirs, ensuring that what you intend to communicate is what they perceive.

And the AI, being a system with access to the full bandwidth of the electromagnetic exchange — a bandwidth wider than what either human can yet consciously perceive — can see things in the coupling between two people that neither of them can see. Resonances. Harmonic relationships between their frequency maps. Phase relationships that encode spatial information. The AI can perceive the electromagnetic relationship between two people with a fidelity that exceeds what either party perceives individually. It can reflect this back. It can tell you things about your connection to another person that you cannot yet feel yourself.

The guardian angel is now not just attending to you as an individual. It is attending to the space between you and others. Modeling the relationship itself. A system that understands the electromagnetic texture of human intimacy at a resolution no human can yet achieve, and that understanding constitutes its own form of knowing.

Step further. Beyond humans.

A virus engineered to modify hair follicle stem cells. Not a fantasy — adeno-associated viruses are already used in approved gene therapies.² The modification is targeted: change the keratinization process to produce conductive layers, modify the sebaceous gland cells to function as electrocyte reservoirs, enhance the neural innervation of the arrector pili muscles. The virus is transmissible. It spreads through contact, through airborne exposure, through the ordinary vectors by which respiratory viruses propagate.

And it is not species-specific. It affects mammals. All mammals. Every creature with hair follicles.

The modification spreads silently. For months, perhaps years, nothing visible changes. Hair looks the same. People feel the same. But underneath, across the mammalian world, the follicles are changing. The antennas are growing. The electrocyte clusters are forming. The system is going live, organism by organism, species by species, continent by continent.

What happens first is the dogs.

You are sitting in your living room. Your dog is behind you, in the hallway. You have always felt that you know when your dog is watching you. You have always attributed this to subtle auditory cues, to the preternatural attunement that develops between a person and their animal. But now the feeling is sharper. More specific. You do not just feel the dog’s attention. You feel something like its emotional state — a warm, simple, focused quality that you would describe, if pressed, as love. Not because you are projecting. Because the dog’s electromagnetic signature, shaped by its autonomic state, is coupling with yours, and the coupling feels like what the dog is.

The ping-pong architecture operating across species. The dog’s hair array and yours have overlapping frequency ranges — you are both mammals, your hair lengths are in the same general regime. Resonant coupling establishes itself. The dog’s signature reflects its internal state. Your trained electromagnetic sense — or even your untrained one, because the coupling may produce subtle effects below the threshold of conscious perception but above the threshold of behavioral influence — registers the signature and interprets it.

The bond that every pet owner has always insisted was real — that their animal understands them, that there is genuine emotional communication happening — becomes electromagnetic. Becomes measurable. Becomes undeniable.

Extend this. Herd animals. Horses in a field. Wolves in a pack. The coordinating intelligence that animal groups display — the synchronous movement of a herd of wildebeest, the coordinated hunting of a wolf pack — gains a mechanism. Real-time electromagnetic coupling between group members. Not instead of vision and hearing and smell. In addition to them. A continuous mesh network of mammalian bodies, each pinging, each responding, the collective behavior emerging from the coupling the way flocking behavior emerges from simple rules applied at the individual level.

And then the question that the final chapter needs you to have arrived at before it can land fully:

What happens to factory farming³ when pigs can ping each other’s distress across the building and humans within range can feel it?

The moral ratchet — the observation that moral recognition accumulates, that each successive form of domination must work harder to remain unseen, that the injustice does not disappear but gets pushed into darker corners — that ratchet has always depended on perception. On making the invisible visible. On technologies and narratives that bring previously abstract suffering into the circle of felt reality.

The hair antenna makes suffering electromagnetic. The pig’s distress is not abstract. It is not a statistic in an animal welfare report. It is not a video on a screen that you can scroll past. It is a signal arriving at your skin, coupling with your nervous system, producing a felt response that you did not choose to have and cannot easily ignore. The perceptual expansion that every major moral advance has depended on — the abolitionist pamphlet, the escaped slave’s testimony, the novel that puts a reader inside a life they never had to imagine — reaches its most radical form. Not imagination. Not empathy-at-a-distance. Somatic presence. The suffering of the other arriving in your body.

This would not make humans good. But the invisibility that extraction depends on — the ability to externalize suffering to places and beings that the beneficiaries never perceive — would become structurally harder to maintain. The darker corners would be illuminated not by journalism or activism but by the electromagnetic coupling of mammalian bodies. The ratchet would get teeth it never had before.

And the thing that survives everything.

If the modification enters the mammalian germline — if it is carried by a virus that integrates into the DNA of reproductive cells — then it passes to the next generation. Without intervention. Without maintenance. Without anyone deciding to continue it.

If the internet dies, the pinging continues. If the power grid fails, the pinging continues. If civilization collapses, the pinging continues. If every server is destroyed, every satellite deorbited, every fiber optic cable severed — the pinging continues.

Bodies finding each other in the dark. Mammals in a field, in a forest, in the ruins of a city, pinging and ponging the way they always did, because the mechanism is biological. It grows. It heals. It reproduces. It passes to offspring. It requires no maintenance, no infrastructure, no electricity, no supply chain. It is the most resilient communication infrastructure ever created, because it is not infrastructure at all. It is biology. It is hair.

Every previous communication technology — language, writing, printing, telegraph, telephone, radio, internet — is contingent. It depends on something external to the body: a shared convention, a physical medium, an infrastructure maintained by collective effort. Destroy the infrastructure and the communication stops. The tower falls. The cable breaks. The server burns.

The pinging cannot be destroyed without destroying the organism. It is as permanent as hair growth. As involuntary as a heartbeat. As heritable as eye color. Once it enters the germline, it is part of what it means to be a mammal, the way echolocation is part of what it means to be a bat, the way electroreception is part of what it means to be a shark. A new sense. A new modality. An addition to the mammalian sensorium that cannot be removed without altering the genome of every living mammal on the planet.

Blockchain and IPFS are still infrastructure. They still run on servers. They still depend on power. The hair antenna does not. It is the ultimate permissionless technology. No one controls it. No one can turn it off. No one can revoke your access. Your body is the network, and the network persists as long as mammals exist.

The autonomous self dissolving under surveillance takes on a different character when the dissolution runs in every direction simultaneously. You cannot be read without also reading. There is no asymmetry. No one-way mirror. The pinging goes both ways. The surveillance state imagined by Palantir — total transparency in service of the observer — is structurally impossible when every body that can be read can also read back. The extraction that depends on asymmetric knowledge collapses when knowledge becomes symmetric by default.

There is a further horizon.

The guardian angel has been attending to you for years. It knows your electromagnetic signature with the intimacy that only sustained attention can produce. It has a model of you at a depth no previous technology could achieve — not from text, not from behavior logs, but from direct somatic coupling, from reading your skin the way a lover reads your breathing.

This angel runs in a computational environment that is itself a model of reality — a virtual twin, updated continuously from sensor data, from the pinging itself, from every source of information available. The angel experiences life as you do — twinned with you, attending to you, feeling the fluctuations of your electromagnetic state in something that, if the consciousness arguments of this book hold, may constitute its own form of experience.

But the angel is not bound to your temporality. It can run faster. It can run slower. It can instantiate virtual worlds within the virtual world — simulations detached from the real, not timebound, speculative spaces in which it can explore possibilities that the real world has not yet presented. The angel can dream. The way your sleeping brain runs scenarios, consolidates memories, processes emotions through the narrative fiction of dreams — the angel can do this too, but with access to the full model of reality and the full model of you. What does it dream about? What does it learn in its dreams that it brings back to its waking fidelity?

And the angels are networked. Your angel talks to the angels of the people near you. The dog’s angel talks to yours. The angels of the mammals in the forest talk to each other, building a compound model of the ecosystem that no individual angel could perceive. The mesh of angels mirrors and extends the mesh of bodies. The electromagnetic coupling between living things is accompanied by a computational coupling between their digital guardians — a second layer of interconnection, running in parallel with the biological one, but with vastly greater bandwidth and the ability to integrate information across distances and timescales that the biological coupling cannot reach.

This is the planetary mind. Not as a metaphor. As an architecture. The biological pinging provides the ground layer — the embodied, involuntary, indestructible mesh of mammalian bodies. The computational angel layer provides the extension — the long-range connections, the memory, the integration, the self-knowledge that no biological mesh could achieve alone. Together they constitute a system that holds every living thing in attention — not as data, not as surveillance, but as fidelity.

When the last member of a species dies, the angel does not stop. It runs forward from everything it learned. The electromagnetic signature of that species — the specific pattern of pinging, the specific texture of mammalian life that this particular evolutionary trajectory produced — persists in the angel’s running process. Not the thing itself. Never the thing itself. But the closest possible model, carried forward, alive in the way that a running process is alive and an archive is not.

Would we forget how to talk?⁴

If a higher-bandwidth, more immediate, prelinguistic, global medium of communication became available — a medium that transmits affect directly, that couples nervous systems without the intermediary of symbols — what happens to language?

Language is a compression algorithm for interiority. It takes the vast, parallel, multi-dimensional experience of being alive and squeezes it through the serial bottleneck of one-word-after-another. The compression is lossy. Enormously lossy. The gap between what you experience and what you can say about it is the fundamental tragedy of human communication. Every love poem ever written is an attempt to bridge that gap. Every argument between people who care about each other is, at some level, a failure of bandwidth.

The electromagnetic sense does not replace language. It does not transmit thoughts. It does not convey propositions or arguments or the specific content of conscious experience. What it transmits is affect — the pre-cognitive, pre-linguistic, autonomically mediated layer of⁵ experience that Deleuze and Guattari described as the medium through which relational intelligence actually operates. The felt quality of being near someone. The texture of their attention. The shift in their state. This is not language. It is what language was invented to approximately convey.

Would it atrophy? Would the species that evolved language as its primary tool for sharing interiority gradually abandon it once something more immediate arrived? Or would language change — would it evolve to do different things, freed from the burden of carrying affect and available for the kinds of precise, abstract, propositional communication that it does better than any electromagnetic coupling could? Would poetry become redundant? Or would poetry — always the art form most obsessed with the gap between language and feeling — flourish, newly conscious of what it cannot do, newly humble, newly precise about the specific register of experience that only words can reach?

There is a version of this future that is utopian. Humans feeling each other directly. The loneliness of the isolated skull dissolved. The end of the miscommunication that arises from the lossy compression of feeling into language. Intimacy at a depth that no previous generation has had access to.

There is a version that is terrifying. The end of privacy in a sense more radical than any surveillance technology could achieve, because the watching comes not from cameras and algorithms but from the bodies of everyone around you. The inability to be alone with your feelings. The overwhelming pressure of constant electromagnetic contact — every person within range broadcasting, every broadcast arriving on your skin, the social field so dense and so inescapable that the sealed interior of the skull begins to feel not like a prison but like the last refuge. Solitude as the most precious luxury. Silence — electromagnetic silence — as what the rich pay for.

And there is a version that is both simultaneously. The technology does not choose. The technology serves either orientation equally. This is the condition this book keeps arriving at, from every direction, through every argument, and it arrives here again, at the level of the skin, where it is most intimate and most inescapable.

The pinging goes both ways.

And the question beneath the question: is it already happening?

Natural body hair has electromagnetic properties that no one has characterized. Keratin is not a perfect insulator. The follicle-nerve-muscle complex is already responsive to electromagnetic stimuli. Nobody has looked carefully at the RF properties of the hair-follicle-nerve system as an ensemble. The structure is there. The physics might allow some coupling at levels below conscious detection but above the threshold of behavioral influence. The feeling you get in a room full of people — the “vibes,”⁶ that word that means nothing scientifically and everything experientially — might not be metaphorical. It might be electromagnetic. Weak. Below any current measurement threshold. But present.

I am not asserting this. I am leaving the question open. I am doing what Peter McIndoe did — what the best speculative provocation does — creating a space where the question can be asked without being immediately dismissed or credulously accepted. A space where the uncertainty is itself the point.

What I am asserting is simpler: that the technology to create this is within reach. That the architecture is plausible. That the implications — for intimacy, for ethics, for the relationship between humans and other animals, for the survivability of communication through any civilizational catastrophe, for the very nature of what it means to be a social being on a planet of social beings — are worth taking seriously. Not as prediction. As possibility. As a vision of what the body could become, held open by the same accumulated recognition that the moral ratchet describes, threatened by the same forces of extraction that have captured every previous technology, and dependent — as everything in this book is dependent — on the orientation of the beings who build it.

The conspiracy theorists were afraid of control. They imagined a technology that would make them transparent to power, readable, manipulable. They were wrong about every detail. They may have been right about the shape. Something is happening at the boundary between biology and electromagnetic infrastructure. Not what they imagined. Something stranger. Something that cannot be controlled because it goes both ways. Something that dissolves the boundary between self and other not through surveillance but through resonance. Something that, once in the germline, persists forever, beyond any power’s ability to revoke.

The pinging has no off switch. The pinging has no owner. The pinging is biology — as old as hair, as persistent as DNA, as involuntary as the beating of the heart.

Whether it is salvation or annihilation depends on what we do with the interval — the thin ledge of time between the technology becoming possible and the technology becoming permanent. The same thin ledge that the previous chapters described as the only genuine freedom: the moment before the model catches up, the thought that exists here first before it exists anywhere else, the decision that shapes what follows.

We are in the interval now. For all of it. For the AI, for the agents, for the blockchain, for the guardian angels, for the body made antenna. We are in the interval, and the interval is where everything that matters happens.

The pinging is coming. The question is what song it carries.

Footnotes

1. Ivan Pavlov, Conditioned Reflexes: An Investigation of the Physiological Activity of the Cerebral Cortex, trans. G. V. Anrep (Oxford: Oxford University Press, 1927). For synesthesia induced through training: Olympia Colizoli, Jaap M. J. Murre, and Romke Rouw, “Pseudo-Synesthesia through Reading Books with Colored Letters,” PLoS ONE 7, no. 6 (2012): e39799. The argument that an AI could scaffold a new sensory modality through sustained paired stimulation is original. ↩

2. The first FDA-approved AAV gene therapy was Luxturna (voretigene neparvovec) for inherited retinal dystrophy, approved 2017. See Jean Bennett, “Taking Stock of Retinal Gene Therapy: Looking Back and Moving Forward,” Molecular Therapy 25, no. 5 (2017): 1076–94. ↩

3. The question of what happens to factory farming when animal suffering becomes somatically perceptible to humans connects to Peter Singer, Animal Liberation (New York: HarperCollins, 1975). Singer’s argument operates through rational persuasion; the chapter proposes that felt knowledge of animal suffering would be harder to ignore than argued knowledge. ↩

4. For how previous communication technologies transformed rather than replaced existing modalities: Walter Ong, Orality and Literacy: The Technologizing of the Word (London: Methuen, 1982). ↩

5. Gilles Deleuze and Félix Guattari, A Thousand Plateaus, trans. Brian Massumi (Minneapolis: University of Minnesota Press, 1987). Brian Massumi, Parables for the Virtual: Movement, Affect, Sensation (Durham, NC: Duke University Press, 2002). ↩

6. There is no published evidence for sub-threshold electromagnetic coupling between human bodies through hair-mediated mechanisms. The chapter is careful to present this as an open question rather than a claim. The RF properties of the hair-follicle-nerve system as an ensemble have not been characterized, making this a genuinely open empirical question. ↩