You write the weirdest piece you've ever written. Too long. Too specific. Nobody outside your head would have written this exact thing. You publish it. Most people read the title and bounce. Three people read the whole thing and write to you. They've been thinking about the same thing for years. You start emailing back and forth. You jump on a call. Two months later one of them visits Denmark and stays at the farm. Two years later you have a small culture around you that didn't exist before — a circle of people who think the way you think, value what you value, hold you while you grow. You realize the blog post wasn't broadcasting your thoughts. It was a search query. It went out across the social graph and summoned the few people who could find each other through it. That summoning becomes the deepest gift of writing. The piece that was just you trying to understand your own life turns out to have written the conditions under which you can have a life worth understanding.1
This concept cannot be understood without (i) creative-practice as the apparatus that produces the search-query — authentic writing-craft is what makes the query specific enough to match real strangers, not generic enough to match no one — AND (ii) the social/anthropological architecture of online culture-formation, in which self-selecting reader-networks materialize friend-groups that transform the writer back, simultaneously. Neither domain explains the mutual-transformation flywheel alone. The mechanism is the intersection: writing-craft seeds the network; network-formation changes the writer; changed writer produces different writing; different writing attracts a refined network. Creative-practice analyzed alone misses the network-effect; sociology of online subcultures analyzed alone misses what makes the attractor work. Cross-domain filing is required.
Late in the interview, Perell brings up the title of one of Karlsson's pieces: A blog post is a very long and complex search query to find fascinating people and make them route interesting stuff to your inbox. He marks the title as audacious. Karlsson responds:
"I think long titles are underrated. Most people only read the title, you know, so you could might as well be useful and put all of the important information in the title. So then they get that at least."1
(That's the long-titles-underrated principle as a side-note. The deeper move is what follows.)
"And that insight in itself — that post, this idea that what you're writing is a search query — that was one of the things that has just blown my life wide open. Because I'm writing because I'm trying to sort of process my own life. But then, once you put that on the internet, it can sort of move out across the social graph and find other people who are into the same thing."1
This is the entire interview's deepest point compressed into two sentences. The writer thinks they're producing prose. The prose is functioning as a search query across a social network. Other people — already out there, already thinking these things — encounter the query and respond. The piece's actual function is to find them.
Karlsson narrates the moment the mechanism kicked in:
"All of a sudden, like, I remember it was this time in December 2021, I had like 50 readers, and I was starting to get emails from really interesting strangers from all over the world — who had read the same books as me and had done that — and I started talking to them. And it's almost surreal because, like — I'm putting these words out and they are summoning like a culture, a friend group."1
The 50-reader detail is important. The summoning mechanism does not require an audience. It requires a signal specific enough that the few people who match it can recognize the match. With 50 readers, three or five of them might be deep matches; that's enough to start a culture. The fans-of-the-week metrics that conventional content-strategy optimizes for are not the mechanism that produces what Karlsson is describing.
Then the flywheel:
"Once I have met these people, I start to get changed by them. So I write something that pulls people in, and then I become a different person through meeting them. So writing becomes this almost a process of summoning a culture — like the specific culture that can hold me."1
Four-stage cycle:
The cycle is recursive. Each iteration produces a writer slightly different from the one who wrote the last piece. The network co-shapes the writer over time. The writer's voice and material develop in part because of who is reading. The mutual transformation is not a side-effect — it's the operating mechanism.
The deepest claim arrives next, and the language is psychologically loaded:
"The specific culture that can hold me. Because I think a lot of people, myself included, never maybe felt truly at home in the cultures they were in — like, oh, my small hometown is not really mine, this job I have is not really me. And to be able to summon a place where being your full, idiosyncratic, authentic self is just the way to be — which is encouraged. It's a very lovely feeling to have a space like that where you can feel safe in exploring the parts of yourself that feel alive — and then having these conversations and growing and changing. So that was the big big gift."1
The word "held" appears three times in the closing minutes of the interview. "Held in your interests, in your curiosities, in your values... being held in that... being able to rest in that and grow in that sort of relationship."1
This is attachment-environment language. Winnicott's holding environment — the conditions under which a self can develop without being prematurely shaped to external demands. Bowlby's secure base — the relational background from which exploration is possible. The summoning-culture is not just a friend-group; it's a holding environment the writer constructed for themselves by writing precisely enough that the right people could find each other.
The cross-domain claim is structural. The summoning isn't a craft phenomenon (creative-practice) and it isn't a network-effect phenomenon (sociology of online community). It's an attachment-environment construction phenomenon, with creative-practice as the seed-material and online culture-formation as the medium. The writer is building the holding they didn't have, using prose as the construction tool. That's not a creative-practice claim alone, and it's not a sociology claim alone.
Karlsson contrasts the summoning mechanism with the strategy he was taught:
"I had been following sort of a conventional logic before this, which was — I had written for magazines and so on, and I had been taught to write for a mass audience, that you should kind of simplify things a little bit, you should take out the weird stuff. And once I let go of that, the interesting thing is that then my writing became weird and too long for most people. So most people read it and were like, what is this? But the few people who read it — they were my people, right? They really loved it. And then they started sending it to their friends and it became this kind of flywheel."1
The mechanism reveals itself in the inversion. The mass-audience strategy is high-volume low-signal: the writer simplifies and removes weirdness so the prose is acceptable to as many readers as possible. The signal-to-noise ratio is bad — the prose matches everyone, which means it matches no one specifically. The writer attracts a broad audience of casual readers; the casual readers don't form a culture because they're not selected for anything in particular.
The summoning strategy is low-volume high-signal: the writer maintains weirdness and length so the prose is acceptable to only the few readers whose specific dispositions match. The signal-to-noise ratio is good — the prose matches few people, but matches them precisely. The writer attracts a small audience of deep matches; the deep matches form a culture because they're specifically selected for shared territory.
This is the operating mechanism behind the summoning. It's an information-theoretic claim about signal specificity. To summon a culture, you have to broadcast a signal specific enough to filter for the people who could be the culture. Mass-audience strategies actively destroy the filter.
The mechanism scales beyond text. Anyone producing authentic output under their own name in a public channel is potentially running the same flywheel:
In each case, the same mechanism is available: produce signal specific enough that the few people who match can find each other through it. Build the culture-that-can-hold-you by writing/making/saying the thing only you would write/make/say. The medium varies; the operating principle is constant.
This is part of why the SIGNAL is cross-domain. It's not really about writing-craft specifically. It's about a general principle of self-constructed belonging through authentic public output. The cross-domain handshake to creative-practice is necessary (the output has to be authentic) and the cross-domain handshake to attachment-architecture is necessary (the resulting network is a holding environment). Neither domain explains it alone.
The search-query / blog-post title concept is at lines 698-702. The 50-readers and Dec 2021 origin moment is at lines 704-706. The flywheel of mutual transformation is at lines 706-708. The culture-to-hold-the-self / never-felt-at-home / being-held language is at lines 708-718. The mass-audience-vs-weird-and-too-long inversion is at lines 712-716. Karlsson recommends the practice to everyone: "not like a big successful blog, but just have a few blog posts out there so your people can find you."1
The summoning mechanism requires patience the metrics-driven publishing world penalizes. Karlsson had 50 readers when the flywheel started. Most platform-success-metrics would have read 50 readers as failure and pressured him to simplify. The mechanism could not have operated under that pressure.
The mechanism also depends on signal-fidelity, which means the writer must not compromise the signal even when no one is reading yet. Writers who soften the weirdness while waiting for the audience produce a signal that won't summon. The writer has to commit to the high-signal version before it has any audience evidence, on faith that the few matching people exist somewhere.
There's a darker tension worth naming: the summoned culture can become its own cage. A reader-network that holds the writer can also constrain them — the writer becomes attached to the network's approval, and the network's expectations start shaping subsequent pieces. The same mechanism that produces the holding-environment can produce role-filtering of a new kind, this time from the curated audience rather than from the cultures-of-origin. Karlsson doesn't address this in the interview, but it's a structural feature of the mechanism that mature practitioners have to manage.
Orlean's library-as-immortality-infrastructure is the closest vault-page analog. Orlean treats writing as externalized mind-output that, aggregated in libraries, becomes civilizational-scale memory. Karlsson treats writing as externalized self-output that, circulated through social networks, becomes self-shaping-relational-infrastructure. Both writers see written text as doing work beyond its immediate informational content — Orlean across time (memory across generations), Karlsson across space (network-formation across the social graph). They split on the operating dimension. Both are correct; both reveal mechanisms invisible from a content-only view of writing. Writing's actual social function is multidimensional — it transmits ideas (content function), it externalizes memory (Orlean), and it summons culture (Karlsson). Writers who think only about content-transmission miss two-thirds of what their work is doing.
Wang's writing-from-disappointment-driven-analytical-voice and Karlsson's summoning-culture converge on a shared mechanism — writing from a position outside cultures-of-origin produces work that finds people similarly positioned. Wang writes from doubled-periphery (Kunming-to-Beijing, Ottawa-to-NYC); the writing finds readers who recognize the periphery-perspective. Karlsson writes from never-felt-at-home-in-cultures-of-origin; the writing finds readers in the same condition. Both writers describe the same flywheel from slightly different positions. Writers whose underlying material includes displacement or non-belonging produce work that summons displacement-aware readers, and the resulting cultures share that property at their core. The holding-environment summoning may be most accessible to writers who needed one — the people best able to construct culture-from-prose are the ones who didn't have it natively. Watch which writers most reliably build durable summoned cultures, and the biographies repeat the pattern: displacement, non-belonging, the search for a place that finally feels like home.
The Perell interview series itself stands in interesting relation. Perell is running an apparatus that has now featured Wang, Pink, Gelb, Orlean, Karlsson — five writers/makers describing how they work. The interview-as-format does for Perell something analogous to what Karlsson describes: the show is a signal that summons specific kinds of guests and listeners, who form a culture around the questions Perell is asking. Long-form audio is another medium running the same summoning mechanism. Choosing what to interview about (and what not to) is the same craft decision Karlsson is making about what to write about — and the audience that forms is constructed by the choices. Watch what happens to a podcast's audience composition when the host pivots to topics outside their original signal-territory. The original audience drifts away; a new audience takes longer to materialize. Same mechanism Karlsson describes for essays, running in audio.
This page is the cross-domain page; the handshakes are to other domains that contribute to understanding the mechanism.
Psychology: Holding Environment and Secure-Base Construction (Winnicott / Bowlby) — Winnicott's holding environment and Bowlby's secure base name the relational conditions under which a self can develop without premature shaping. Karlsson's summoned-culture is a holding-environment the adult writer constructed for themselves, using prose as the construction tool. Adults whose original holding-environment was inadequate can construct one in adulthood through authentic public output. This is a developmental claim, not just a sociological one. The mechanism Karlsson describes is repair-of-attachment-gap through public-output. Sit with a writer in their forties who never felt held in their childhood and now lives in the middle of a summoned culture they built through fifteen years of essays. Watch what happens to their body when they describe the culture. Watch their face. Writing-craft and other authentic-output practices may be developmentally therapeutic in ways the existing therapy literature hasn't fully named — not as expressive catharsis but as construction of the holding-environment the self needs for further growth.
Behavioral-mechanics: Signal Specificity and Self-Selection of Targets — influence-engineering knows specific signals self-select aligned targets better than broad signals. Niche marketing, dog-whistle politics, scenius-formation all operate on this principle: be specific enough that the right people recognize themselves and respond. Karlsson's summoning-mechanism is the same principle applied to friendship-formation. The same information-theoretic mechanism that drives commercial niche-targeting drives Karlsson's culture-summoning. The moral distinction is in intent — niche marketing exploits self-selection for commercial extraction; Karlsson uses self-selection for mutual transformation. Same lever. Opposite purposes. The mechanism is morally neutral; what determines its valence is what the summoner is offering once the targets self-select. Watch a commercial newsletter and a Karlsson essay both go out to a tightly-niched audience. Same operation. Different gift on the other side.
History: Scenius as Self-Organizing Creative Network — Brian Eno's scenius (creative cultures that emerge from groups of specifically-aligned people finding each other) names the historical pattern Karlsson is describing at smaller scale. Bloomsbury, the Beats, the Vienna Secession, the early Substack writer-network — these are sceniuses that emerged because their members produced work specific enough to summon each other. Karlsson's mechanism has been operating across history wherever creative cultures self-organized. The summoning principle isn't new with the internet — it's the same mechanism that produced literary salons, painter-circles, philosophical schools. The internet has lowered the cost and increased the reach, but the underlying principle is ancient. The novelty is that an individual writer can now run the summoning from their bedroom, where historically it required physical proximity (Paris cafes, London neighborhoods). Picture Virginia Woolf at the Bloomsbury dinners. Now picture Karlsson on his Danish farm receiving emails from strangers in eight countries. Different scale, same operation.
Eastern-spirituality: Sangha as Attachment Environment — Buddhist sangha is the third of the Three Jewels (Buddha, Dharma, Sangha) — the community of practitioners that makes serious practice possible. The doctrine is explicit: without sangha, the dharmic work cannot be sustained. Karlsson's summoned-culture is a contemporary sangha-equivalent constructed through written output rather than through monastic vow or shared geography. The culture-that-holds-the-self requirement Karlsson articulates is one of the oldest recognitions in spiritual tradition. Mahayana Buddhism systematized it 2,000 years ago: the community isn't optional infrastructure but a load-bearing component of the practice. Karlsson updates the principle for contemporary conditions — when geographic monasticism is unavailable, written authentic output can summon a distributed sangha. Karlsson's framework has deeper traditional grounding than its contemporary language suggests; what looks like a writing-craft insight is actually the rediscovery of a contemplative-tradition principle about how serious adult development requires community-as-infrastructure. Writers who develop strong summoned-cultures may be running sangha-equivalent practice without naming it, and the durability of their work over decades may depend on this hidden infrastructure more than on craft skill.
The Sharpest Implication
Most career-advice for writers (and creators more broadly) optimizes for audience size. Build your subscriber list. Grow your followers. Increase your reach. Karlsson's framework says audience-size is the wrong metric. The right metric is signal-specificity. A writer with 500 specifically-summoned readers has more than a writer with 50,000 generically-attracted readers — more cultural infrastructure, more mutual-transformation potential, more holding. The audience-size metric is structurally adversarial to the summoning mechanism: optimizing for size requires reducing specificity, which destroys the filter, which prevents summoning. The unrecognized choice every writer makes is whether they're optimizing for the wide-audience metric or the summoning metric. The two metrics produce different careers, different lives, different long-term outcomes. The writer who picks size early and never switches can spend a career growing readership while becoming progressively more isolated — because the people they're reaching are not their people, just people. The writer who picks summoning, even at the cost of size, builds the holding-environment that sustains the work and the worker. The hardest part is the early stage when the metrics make summoning look like failure; only the writer's faith that 50 specifically-aligned readers will outperform 50,000 unaligned readers gets them through the metric-pressure. Most writers cannot hold this nerve. The ones who can are the ones who develop summoned cultures.
Generative Questions
Two writers from the How I Write batch operate variants of the summoning mechanism that extend Karlsson's frame across two further temporal and structural scales.
Popova — daily showing-up at the public altar of attention. Maria Popova's twenty-year Marginalian practice is the largest-scale realized case of Karlsson's mechanism in the contemporary essay-economy. The practice ran daily for nearly two decades on a personal site, without venture-funded growth, without algorithmic amplification, with signal-specificity (the curated-passage-with-contemplation form) as the only differentiator. The summoned culture is now several hundred thousand readers — but the self-selection of those readers is what makes the case relevant to Karlsson's frame, not the size. The readers who remained over years are specifically the ones whose attention the Marginalian-form rewards. Popova names her discipline as showing up — inspiration is a guest who does not visit the lazy, citing Tchaikovsky.2 The showing-up is the summoning-practice's daily form. The summoning happens because the writer is reliably there, holding the signal, allowing the right readers to self-select toward her over years. The case demonstrates Karlsson's mechanism at the twenty-year scale and shows that the summoned-culture continues to refine even as it grows — because new readers who arrive without the underlying signal-affinity self-select away.
Powers — cyclical-solitude as the summoning of writer-self. Richard Powers's solitude-cycle (months-to-years of withdrawal followed by re-emergence) operates the summoning mechanism inward rather than outward. Karlsson summons the reader-culture-that-holds-him. Popova summons the daily-reader-presence that confirms the work matters. Powers's solitude-cycle summons the writer-self that can produce novels of the depth his work requires. The withdrawal is what allows the writer-self to develop in conditions where the audience-self cannot interfere. The re-emergence brings the work to the readers, but the readers were never the summoning-target. The summoning-target is the writer Powers needs to be in order to do the work. You baffle your friends and change the lives of strangers.3 The friend-baffling is the cost of the inward-summoning. The stranger-changing is what the inward-summoning eventually produces externally — because the writer-self the inward-summoning developed produces work that resonates with strangers Karlsson would call summoned-culture.
The expanded picture: Karlsson summons reader-culture-that-holds-writer / Popova summons daily-attention-that-confirms-work / Powers summons writer-self-that-produces-work. Three forms of the same architectural operation — some specific cultural or psychological condition is being produced by the writer's specificity-discipline. The form varies; the underlying mechanism is the writer's refusal to optimize for mass-audience and corresponding capacity to produce conditions audience-optimization cannot reach. Different writers reach different forms of the mechanism depending on their material, their temperament, and their life-stage. All three forms are real summoning. None is reducible to the others.