You lie down on the sofa. You close your eyes. You hold a topic in mind for thirty minutes — and you don't let yourself say a single word inside your head. Not even silently. You're trying to feel what the essay would be like, before language arrives. Energy in different parts of the body. Currents. Colors. A pulling here, a pushing there. After thirty minutes, you might know something about the piece that no amount of word-thinking could have produced. The mathematician Hadamard found the same: the greatest mathematicians don't think in words or symbols. They feel it kinetically — in their hands, in energy-fields in the body. The words come at the end, when the body-knowing has been worked out enough to commit to language.1
Karlsson cites the book directly:
"I read a book called The Psychology of Invention in the Mathematical Field by a mathematician called Hadamard. Incredible book. It was written maybe early 1900s, and he made an observation that the greatest mathematicians do not think in words or symbols. They think kinetically — they feel it in their hands. They feel energy fields in their body. And it's only once they are fairly far along in solving a mathematical problem that they actually write it down, because it's too clumsy to work with words. It's much faster to move with these kind of intuitions in your body."1
Jacques Hadamard's Essai sur la psychologie de l'invention dans le domaine mathématique (1945, surveyed mathematicians including Einstein, Poincaré, others) reported that elite mathematical thinking is not linguistic. The high-bandwidth work happens in body-feel, spatial intuition, kinetic sense. Words and symbols are a transcription stage applied to a solution that's already been worked out in the body.
This is counterintuitive because the product of mathematics is symbolic. The proofs are in language. The papers are in equations. From the outside, it looks like the work was done in symbols. From the inside, the symbols are only the final form of an inquiry conducted in a non-linguistic substrate.
Karlsson immediately tested whether this could apply to writing:
"I was like, wow, that's so strange. I wonder if I can write an essay without words. So I lay down and closed my eyes, and lay for like half an hour, like — I'm not going to say a single word in my head. I try to keep my voice out and see if I can just feel the emotional currents of the piece. It took some practice, but those are just kind of weird things you have to do."1
The thirty-minute no-words discipline is the practice. The writer holds the topic in mind without internal verbalization. What remains is felt-structure — emotional currents, body-energy, spatial relations between ideas. After enough practice, this state becomes accessible. The essay's shape and feel are worked out in the body before any sentence is composed.
When the body-knowing is rich enough, the writer comes back to language. Now the sentences emerge much faster because they're transcribing a state that's already been worked out — they're not constructing the state through trial-and-error language attempts.
This is also why Karlsson can type fast during Step 4 of his method. The energy-snap is the moment the body-knowing has resolved; the typing is transcription of an already-existing pre-linguistic structure.
Perell articulates the principle in a different vocabulary:
"When you're pre-linguistic, you're not operating inside a mode of category. And because of that, what you're doing is you're getting much higher resolution. You're getting — it's like a giant photo that hasn't been compressed. The compression comes later. And most of the way that people speak is in a lot of compression. Like if you say, 'Oh, the political right, tariffs' — you have compressed so much. But what you're trying to do is get to a pre-compressed state as you observe reality and look and look and look. And then just let that process of observation happen over a long amount of time, sometimes a year. You say it needs to live inside your body for a year. And then after a year or two years, then you'll do the work of compression."1
The reframe is sharp. Pre-linguistic thinking is higher resolution because language is compression. Political right compresses thousands of distinct people, beliefs, contexts into one token. Tariffs compresses centuries of trade policy, economic theory, current debates into one label. To think in compressed language is to think at low resolution.
Karlsson's year of incubation is, in Perell's framing, the time required to observe at pre-compressed resolution. The year doesn't produce more words; it produces more body-knowing. The compression only happens at the end, when the writer has enough material to compress down to rather than up from.
The implication: writing-too-early is committing to compression before observation. Writing-after-incubation is choosing compression with the option to compress richly because the underlying material is fully resolved.
The pre-linguistic body-thinking move shows up across Karlsson's process at multiple stages.
During incubation: Long walks where the topic is held in mind without internal verbalization. The body collects observations without language-tagging them. Material accumulates as felt-impressions rather than note-statements.
During sequencing: Lying on the sofa, picturing clusters as colors and feelings, moving them around in body-space until the right order produces a body-felt energy release. The whole magnetic-field-and-cluster mechanism operates in pre-linguistic mode.
During specific stuck-points: When a section won't come right, the no-words-thirty-minute discipline becomes a deliberate exercise. The writer steps fully out of language to access body-knowing that the verbal mode can't reach.
The pattern across all three: language is the output, not the thinking medium. Thinking happens in body-feel; language is the transcription channel.
Most writing pedagogy treats language as the thinking medium. Think on the page, write to discover, talk through the problem. These methods use language to think and to communicate. Karlsson's framework (via Hadamard) treats language as transcription of pre-linguistic thinking. The two work for different writers and different material — but they produce different outputs.
Language-as-thinking-medium tends to produce essays that are highly legible (the thinking is visible because it happened in language) but that compress early (every sentence is a compression decision). Language-as-transcription tends to produce essays that are resonant (the underlying pre-linguistic richness implies more than the words say) but slower to write (the body-thinking takes time).
The two are not mutually exclusive. Most working writers use both modes, switching depending on the material. Karlsson seems to weight pre-linguistic more heavily; analytical-essay writers tend to weight language-as-thinking more.
The Hadamard citation is at line 470 of the transcript. Karlsson's no-words-thirty-minute experiment is at lines 472-474. Perell's giant-photo-uncompressed synthesis is at lines 656-662. The body-felt cluster-sequencing (Step 3) is at lines 78-84.
Karlsson uses synaesthetic language throughout the interview — clusters with colors, ideas with feelings, energy fields between clusters. Perell calls this out explicitly at line 466 ("I can't believe how much synaesthesia is in the way you talk about writing"). The pre-linguistic body-thinking is the substrate that produces the synaesthetic language.
The pre-linguistic discipline has high overhead. Thirty minutes lying on a sofa is not productive-feeling time, and most working writers cannot easily justify it inside conventional workflows. The practice is more accessible to writers with the structural privilege of unsupervised time.
The discipline also requires somatic capacity that not all writers have developed. Writers who live primarily in the head — who experience their thinking as constant internal verbalization — may not have ready access to body-feel as an information channel. For them, the pre-linguistic practice requires foundational somatic work (body-awareness practices, slowing down, sensing) before it can produce essay-grade output.
Gelb's intuition-writer-and-creative-process and Karlsson's pre-linguistic body-thinking are siblings. Gelb describes documentary-craft intuition as a body-felt sense that overrides script. Karlsson describes essay-craft intuition as a body-felt sense that produces structure. Both writers locate the creative work in a pre-linguistic substrate. Across cinema and essay, felt-substrate work is treated as foundational by serious practitioners. Writers who only operate linguistically are working in a flatter dimension than those who can drop into the body-substrate. Read a piece written entirely from the linguistic-analytical layer alongside a piece written from body-substrate first. The first reads correctly; the second reads alive. The difference is not in the words but in what's underneath them.
Wang's "writing in solitude on a remote island" approach and Karlsson's pre-linguistic body-thinking converge on the same condition: the body-feel apparatus requires time and quietness to operate. Wang's Vietnam retreats and Karlsson's Danish island farm aren't romantic preferences; they're infrastructure for the pre-linguistic stage. Writers who cannot create conditions of extended quiet are operating without the substrate, regardless of their language-skill. The output is correspondingly shallower — competent prose without the underlying body-felt resonance. The infrastructure choice (where you live, how loud your week is, whether your phone is reachable) is upstream of the craft choice (what sentence to write next). Most writers spend their craft-attention downstream and wonder why their work feels thinner than the writers they admire who live more quietly.
Shafak's drunk-state writing convergence is interesting. Shafak describes writing from a non-judgmental dream-state where the analytical mind is offline. Karlsson's no-words-thirty-minute discipline is a deliberate-induction version of the same state. They split on how the state is entered. Shafak waits for it — drunk-state arrives spontaneously when the conditions are right. Karlsson installs it — the discipline is a method for producing the state on demand. Both produce non-verbal thinking. The dream-state and pre-linguistic state are the same underlying access; the methods for reaching it can be passive (waiting) or active (disciplined practice). Writers benefit from both routes — passive when conditions are good, active when conditions aren't.
The pre-linguistic body-thinking principle is well-supported across multiple domains. What Karlsson is operationalizing has names in fields he doesn't cite.
Eastern-spirituality: Dharana and Pratyahara — Concentration and Withdrawal — yogic pratyahara (sensory withdrawal) followed by dharana (single-pointed concentration) names the same operation Karlsson describes: pull attention back from external sensory input and from internal verbal input, then concentrate on the object without language. The result is direct perception of the object's nature unmediated by symbolic overlay. Sit a long-time pratyahara-dharana practitioner down with Karlsson's no-words-thirty-minute instruction. They settle into it the way they settle into any meditation — apparatus already built. Sit a writer with no contemplative training down with the same instruction. They feel awkward, words sneak in, the half-hour stretches longer than they thought possible. Yoga-as-craft-infrastructure isn't a metaphor — the same skills that produce contemplative states produce pre-linguistic creative states. Writers with serious meditative practice access the substrate more reliably than writers without it.
Psychology: Embodied Cognition and Felt Sense (Gendlin) — Eugene Gendlin's focusing method names "felt sense" as a body-located knowing that precedes verbalization and carries more information than language captures. Gendlin's clinical work showed therapy-clients who could access felt-sense produced better outcomes than clients stuck in verbal thinking alone. Karlsson's no-words-thirty-minute experiment is felt-sense applied to writing. Underneath Karlsson's somatic language is felt-sense — a well-studied cognitive mechanism with clinical applications. Writers can borrow directly from therapeutic traditions (Gendlin's focusing, Hakomi's mindfulness-based access) as substrate-access tools. The therapy literature has names and protocols for what Karlsson stumbled into independently, and writers willing to read across fields shortcut years of solo experimentation.
Behavioral-mechanics: Somatic Baseline Reading as Influence Foundation (Hughes) — Hughes' behavioral-profiling apparatus begins with baseline-reading of the target's body language before any verbal analysis. The body-channel carries information the verbal channel doesn't. Karlsson's pre-linguistic body-thinking is the same channel turned inward — reading one's own body-state for information that verbal thinking misses. High-skill operators in any field that deals with subtle information rely on body-channel reading. Therapists, profilers, contemplatives, and now writers — they all bypass language at the input stage. The body-channel is a general cognitive apparatus available across practices. Watch a skilled body-language reader and a language-only thinker observe the same person. Different data reaches them. Same room, same minute, different evidence. Language-only thinkers are operating with one hand tied behind their back regardless of which field they're in.
Creative-practice handshake (across crafts): Intuition-Writer and the Creative Process — Shafak's drunk-state, Vuong's recognition-not-correction, Tchaikovsky's chronicling-not-inventing — these describe phenomenology consistent with Hadamard's mathematicians and Karlsson's no-words experiment. Mathematics, fiction, essay, poetry — none of these practitioners cites the others, and yet they all describe the same substrate. Pre-linguistic body-thinking is medium-independent. It's not a writing-specific skill; it's a general cognitive capacity that surfaces wherever a craft requires holding complex material without premature symbolic commitment. Writers seeking access can learn the apparatus from any of the converging practices — meditation, martial arts, mathematical research, instrumental musicianship, certain forms of dance. The medium-specific outputs are downstream; the substrate is what to develop, and the substrate is reachable through many doors. Writers who only train through writing-practice have a narrow approach to a capacity that can be widely cross-trained. The cross-training often outperforms the direct route because the body-channel is more available in non-symbolic mediums to begin with.
The Sharpest Implication
Most writing-craft instruction is language instruction — better word choice, better sentence rhythm, better paragraph structure. Karlsson's framework says the language layer is the transcription layer, and improving transcription doesn't improve the content being transcribed. A writer can spend years perfecting their language and produce no improvement in their pre-linguistic thinking. Conversely, a writer who develops the pre-linguistic substrate produces better content whose transcription is then more accurate — and the language often improves as a side-effect. This inverts the standard skill-progression. Most writing programs teach language first because it's teachable; the substrate is harder to develop and slower to manifest in surface-prose. But the writers who matter long-term are the ones who developed the substrate — even when their surface prose is less polished than competitor-writers with better-developed language skills but undeveloped substrate. The substrate is the work. The language is the transcription. Investing equal time in both is wrong; investing more in the substrate produces compounding returns the language-only writer cannot match.
Generative Questions
Two writers from the How I Write batch add adjacent operational modes the page's apparatus does not directly name.
Popova — showing-up-as-the-portal. Maria Popova's twenty-year discipline at The Marginalian operationalizes the same pre-linguistic substrate Karlsson and Hadamard describe but at the daily-availability scale rather than the session-and-burst scale. She shows up at the desk every day regardless of whether the body-substrate has resolved into anything yet. The showing-up is itself part of how the substrate develops. Tchaikovsky's inspiration is a guest who does not visit the lazy is her articulation. The pre-linguistic resolution arrives during the showing-up, not before. The writer who waits for the substrate to fully form before sitting down has the sequence inverted — the sitting is what lets the substrate complete. Popova's frame extends Karlsson's by naming the practice-conditions under which the substrate becomes accessible. Without the daily availability, the substrate may form but cannot be received because the writer is not present when it arrives.11
Tucker — tunneling as charged-state body-thinking. Tucker Max's tunneling (also called port-holing) names a specific operational form of pre-linguistic body-thinking that arrives during charged scenes. When someone's feeling a high-intensity emotion, usually they — it's called tunneling. They get super into the like — everything becomes hyper aware. I feel the fabric, I feel my skin, the oils and sweat on my skin going into the fabric.12 The tunneled state is involuntary attention compression — the writer's body has already focused before the writer consciously decides to focus. The pre-linguistic substrate is delivering raw sensory data the writer's transcription apparatus can render. Tucker's discipline is to not screen out the apparently-irrelevant tunneled material (the fabric weave, the textile-name half-remembered, the small visual detail). The screening-out is what would break the substrate's delivery; the not-screening-out is what makes the rendering carry felt-weight.
Three operational forms of the substrate-discipline now: Karlsson's session-burst body-thinking / Popova's daily-availability-showing-up / Tucker's involuntary-tunneling in charged moments. All three operate on the pre-linguistic substrate the page describes. Different writers reach different forms of the substrate-access through different practices. The full picture is that the substrate is always operating; the writer's job is to be present for what it delivers, in whatever temporal form the writer's life and material allow.