Karl Weick: how people make sense of ambiguous situations. Sensemaking is retrospective — we understand what we did after we've done it. It's social — we construct meaning through interaction. It's ongoing — never finished.
In 1949, fifteen smokejumpers parachuted into Mann Gulch, Montana to fight what their foreman assessed as a routine wildfire. Within minutes, the fire jumped the river and raced toward them at speeds exceeding 600 feet per minute. The foreman, Wagner Dodge, lit an escape fire — deliberately setting the grass at his feet ablaze and lying down in the ashes. He survived. Twelve of his thirteen crew members ran from both fires and died. They could not make sense of what Dodge was doing — why their foreman was setting a fire during a fire — fast enough to follow his lead. Weick argued they didn't die from a fire. They died from a collapse of sensemaking. Their existing sense of the situation disintegrated when conditions changed faster than they could construct a new understanding.
In ambiguity, meaning isn't discovered; it's constructed. Design the construction process.
In organisations: crises trigger sensemaking. Leaders don't "communicate" a message; they create conditions for shared sensemaking. Amazon's narrative structure for documents — the six-page memo, the PR/FAQ — forces clarity. The format doesn't transmit information. It forces the author to construct meaning from ambiguity before the meeting begins. The reader doesn't receive a message. They participate in sensemaking. The document is the construction process made visible.
Weick's famous formulation: "How can I know what I think until I see what I say?" You don't first understand and then act. You act, observe the results, and then construct an understanding. The entrepreneur doesn't fully understand the market and then launch. They launch, see what happens, and revise their understanding based on what they learn. Sensemaking is meaning created through action, not meaning discovered through contemplation.
The distinction between sensemaking and decision-making matters. Decision-making assumes the situation is understood and the task is choosing among options. Sensemaking addresses the prior question: what is the situation? Before you can choose, you have to frame. Before you can frame, you have to notice. Before you can notice, you have to act. The entire upstream process — from ambiguity to a situation clear enough to decide about — is sensemaking. Most leadership training focuses on decision-making. The bottleneck, in ambiguous environments, is almost always sensemaking.
Startup founders practice sensemaking constantly — often without knowing the term. A founder reads a weak signal from a customer conversation, connects it to a market trend, triangulates with an internal signal, and constructs a narrative: "the market is shifting toward X, and we need to move now." That narrative may be wrong. But it is actionable. It organises ambiguous data into a coherent direction. It enables a decision where pure analysis would produce paralysis, because the data is insufficient for analytical certainty.
Section 2
How to See It
Sensemaking is visible in the gap between ambiguity and action — the moments when people construct a story from incomplete data and commit to a direction despite uncertainty. You see it when leaders articulate a narrative that organises chaos, when teams align around an interpretation that may be wrong but enables movement, and when individuals reframe a confusing situation into something they can act on.
You're seeing sensemaking when someone looks at contradictory data and says "here's what I think is happening" — constructing a narrative that is plausible, actionable, and revisable.
Startup Strategy
You're seeing sensemaking when a founder conducts thirty customer interviews and hears thirty different things. The data doesn't converge into a clean insight. The founder sits with the mess, notices that five of the thirty mentioned a workflow they hate, connects that to a market trend, and constructs a narrative: "The underserved problem is this workflow friction, and the market is ready for someone to solve it." The narrative may be wrong. But it organises the chaos into a testable hypothesis.
Crisis Leadership
You're seeing sensemaking when a CEO faces a sudden market collapse — revenue drops 40%, three key customers churn, the competitive landscape shifts. The data is contradictory. The CEO constructs a narrative: "This is a category shift, not a cyclical downturn. We need to reposition now." The narrative may be wrong. But it enables the organisation to move in a coordinated direction rather than fragmenting into paralysis.
Product Development
You're seeing sensemaking when a product team launches an MVP and the early data is confusing: sign-ups strong but activation weak, one segment loves it and another ignores it. The PM constructs a narrative: "We built for Segment A but the actual pull is from Segment B, and they're using it for a job we didn't design for." That narrative reframes the confusing data into a coherent story that directs the next sprint.
Organisations
You're seeing sensemaking when a leadership team faces a strategic decision with incomplete information. Instead of commissioning a six-week analysis, they convene a working session where each member articulates their interpretation. The goal isn't consensus — it's surfacing the different narratives that the same data supports. The sensemaking happens in the room, through interaction. The output is a provisional narrative that the organisation can act on and revise.
Section 3
How to Use It
Sensemaking is not a technique you apply. It is a process you facilitate — creating the conditions in which ambiguous data can be assembled into actionable narratives that remain open to revision. The discipline is resisting both premature closure (locking in a narrative too early) and permanent openness (never committing to any narrative, paralysed by ambiguity).
Decision filter
"When facing ambiguous data, I ask: can I construct a plausible narrative that organises these signals into a coherent story? If yes, I treat the narrative as a hypothesis — act on it but stay ready to revise. If I can construct multiple equally plausible narratives, I identify the cheapest action that would distinguish between them. If I can't construct any narrative, I need more data — gathered through action, not contemplation."
As a founder
Your job is sensemaking. Every week you absorb ambiguous signals — customer feedback, competitive moves, market data — and construct the narrative that directs the company. The skill is not finding the right narrative on the first attempt. It is constructing a plausible narrative quickly, acting on it, reading the feedback, and revising. The best founders iterate narratives at high frequency. The worst founders lock in a narrative early and filter all subsequent data through that fixed frame.
As a leader in crisis
Crisis is when sensemaking matters most and fails most catastrophically. Under crisis conditions, the brain reaches for the most familiar frame. The discipline: in the first hours, resist the urge to classify immediately. Gather diverse perspectives. Construct a provisional narrative. Act on it. Watch what happens. Update every four to six hours as new data arrives. The goal is not to be right immediately. It is to be wrong in updatable ways.
As an operator
Design the construction process. Amazon's narrative structure — six-page memos, PR/FAQ, working backwards — doesn't transmit information. It forces sensemaking. The author must construct meaning from ambiguity before the meeting. The reader participates in that construction. Leaders who understand sensemaking don't "communicate" a message. They create conditions for shared sensemaking. The silent reading period at the start of Amazon meetings ensures everyone engages with the same constructed narrative before discussion. The document is the sensemaking process made visible — meaning constructed, not transmitted.
Common misapplication: Confusing sensemaking with guessing. Sensemaking is disciplined narrative construction from available evidence. Guessing is acting without engaging with the evidence at all. The difference is not the certainty of the conclusion — both may be wrong — but the rigour of the process.
Second misapplication: Treating the sensemaking narrative as the final answer. The narrative is a working hypothesis, not a conclusion. Weick was explicit: sensemaking is an ongoing process, not a one-time event. The narrative must be continuously updated as new data arrives. Organisations that construct a narrative and then stop — treating it as settled truth rather than evolving interpretation — recreate the Mann Gulch failure: a frame that worked five minutes ago applied to a situation that has since changed.
Bezos didn't invent sensemaking. He designed the construction process. Amazon's narrative structure for documents — the six-page memo, the PR/FAQ, working backwards from the press release — forces clarity. The format doesn't transmit information. It forces the author to construct meaning from ambiguity before the meeting begins. Leaders don't "communicate" a message. They create conditions for shared sensemaking. The silent reading period at the start of meetings ensures everyone engages with the same constructed narrative before discussion. The document is the sensemaking process made visible. Bezos understood that in ambiguity, meaning isn't discovered; it's constructed. Design the construction process.
Hastings's leadership of Netflix is a master class in serial sensemaking — constructing, committing to, and then deliberately destroying successive narratives as the market evolved. The first narrative: "We're a DVD-by-mail company that kills late fees." When streaming matured, Hastings constructed a second: "We're a streaming distribution platform." That required killing the DVD business that generated cash flow. The stock dropped 77% after the Qwikster debacle. Hastings read the feedback, revised the narrative, and pressed forward. The third narrative: "We're a content studio that happens to distribute digitally." Each transition required Hastings to look at ambiguous data and construct a new story about what Netflix was becoming. Sensemaking is ongoing — never finished. Hastings's skill was dropping the old frame and constructing new sense fast enough that the organisation could follow.
Section 6
Visual Explanation
The diagram contrasts two responses to the same disruption. The left panel shows rigid framing — the Mann Gulch pattern: an existing frame ("routine fire") encounters data that contradicts it, but the frame cannot update. The crew defaulted to their existing playbook and died. The right panel shows adaptive sensemaking: the same initial frame encounters contradicting data, but the frame updates, producing a new narrative and a new action. Dodge's escape fire was an act of radical sensemaking — constructing new meaning from a situation with no precedent in his experience.
The bottom section maps the sensemaking loop: notice cues, bracket them into a frame, act on the frame, revise based on what happens, and cycle continuously. The dashed return arrow is the structural key: sensemaking is not linear. It is an ongoing loop where each action produces new data that feeds the next round of meaning-making. The loop never terminates. The narrative is always provisional. The moment you treat a sensemaking narrative as a settled conclusion — the moment the loop stops cycling — you have recreated the conditions for Mann Gulch.
Section 7
Connected Models
Reinforces
Narrative
Sensemaking produces narratives. The narrative is the output of the construction process — the story that organises ambiguous data into something actionable. Narrative and sensemaking are inseparable: you cannot make sense without constructing a story. The quality of the sensemaking is the quality of the narrative — plausible, revisable, grounded in extracted cues.
Tension
Map vs Territory
Sensemaking is the process of constructing the map. Map vs Territory is the reminder that the map is not the territory. Every sensemaking narrative is a map — a simplified, constructed representation of complex, ambiguous reality. The narrative is useful because it simplifies. It is dangerous because the simplification omits details that may be critical. The sensemaker who forgets they are constructing a map loses the ability to update when the territory changes.
Tension
Cognitive Dissonance
Cognitive dissonance is what happens when new data contradicts the narrative you've constructed. Sensemaking requires updating narratives when evidence demands it. Cognitive dissonance creates pressure to resist that update — to distort the evidence or rationalise the contradiction rather than revise the narrative. Effective sensemaking requires tolerating dissonance long enough to let it drive revision.
Reinforces
Framing
Section 8
One Key Quote
"How can I know what I think until I see what I say?"
— Karl Weick, Sensemaking in Organizations (1995)
Weick's line encapsulates the deepest insight of sensemaking theory: understanding is not a precondition for action. It is a product of action. You do not first figure out what you think and then express it. You express something — a hypothesis, a strategy, a product — observe what you've produced, and then discover what you were thinking. The implication for leaders is radical: you cannot think your way to clarity in ambiguous situations. You must act your way to clarity.
This inverts the standard decision-making model, which assumes: gather data, analyse data, reach conclusion, then act. Sensemaking says: act (even provisionally), observe the results, construct a narrative from the results, then act again with a better narrative. The founder who waits for perfect market understanding before launching will wait forever — because the market is too complex for analytical certainty. The founder who launches, reads the feedback, revises the narrative, and launches again is practising Weick's sensemaking. The iteration is not a failure of planning. It is sensemaking in action.
The organisational implication: create environments where people can act, reflect, and revise without penalty for getting the initial narrative wrong. The Mann Gulch crew couldn't update their frame partly because the social structure didn't support it — the foreman's radical action was incomprehensible to the crew because the hierarchy didn't equip them to independently construct new sense. Organisations that punish incorrect narratives destroy sensemaking. Organisations that reward the speed of updating over the accuracy of the initial guess cultivate it.
Section 9
Analyst's Take
Faster Than Normal — Editorial View
Sensemaking is the cognitive process that separates effective founders from ineffective ones — and almost no one calls it by name. Every founder operates in ambiguity. Customer data is contradictory. Market signals are noisy. The founder's job is to absorb this chaos and produce a coherent narrative that the team can execute against. That is sensemaking. The founders who do it well — who construct plausible, actionable, revisable narratives from messy data — build companies that adapt.
Leaders don't communicate a message. They create conditions for shared sensemaking. The difference is structural. Communication assumes the leader has a message to transmit. Sensemaking assumes the situation is ambiguous and meaning must be constructed collectively. Amazon's six-page memo doesn't transmit Bezos's view. It forces the author to construct meaning from ambiguity. The reader participates in that construction. The meeting is shared sensemaking, not information transfer.
Amazon's narrative structure is sensemaking infrastructure. The PR/FAQ. Working backwards. The six-page memo. These aren't communication formats. They're construction processes. They force clarity by forcing the author to make sense of ambiguity before the meeting. The document is the sensemaking process made visible. Design the construction process.
The practical failure I see most often: organisations that confuse analysis with sensemaking. They face an ambiguous situation and commission a "deep analysis." They produce a 50-page report that is beautifully structured and completely useless — because the situation is genuinely ambiguous, and the data supports multiple interpretations. What the organisation needed was sensemaking: a disciplined process of constructing a provisional narrative, acting on it, and revising based on results. Instead, they got six weeks of analysis that produced a confident answer to a question that doesn't have one.
My operational test: when someone presents a strategic narrative, I ask "what would cause you to revise this?" If they can't answer, they've locked in a frame. The inability to articulate revision conditions is the diagnostic for frozen sensemaking. The narrative has become an identity rather than a hypothesis. Sensemaking is ongoing — never finished. The moment you treat it as settled truth, you've stopped making sense.
The COVID-19 pandemic was the largest sensemaking test in modern corporate history. Every company faced genuinely ambiguous data — was this a temporary disruption or a permanent restructuring? The companies that thrived were not the ones who guessed correctly on day one. They were the ones who sensemaking-looped fastest: constructing a provisional narrative, acting on it, reading the market feedback, and revising within weeks rather than quarters. The companies that froze — waiting for analytical certainty about when things would "return to normal" — lost months of adaptation time.
Section 10
Test Yourself
Is this sensemaking or something else?
Scenario 1
A Series B startup's metrics are contradictory: MRR growing 15% month-over-month, but net revenue retention declining. The CEO tells the board: 'We're in a growth phase — the unit economics will catch up.' A board member asks: 'What would have to be true for the unit economics to catch up? What's your evidence?'
Scenario 2
In March 2020, a hotel chain's CEO convened a crisis team. One group argued: 'This is like SARS — temporary. Preserve cash and wait.' Another argued: 'This is structurally different. Pivot immediately to long-stay accommodations.' The CEO said: 'We don't know yet. Let's run both hypotheses for 30 days — preserve cash AND test the long-stay pivot in three markets. We'll reconvene with data.'
Scenario 3
An intelligence agency receives three signals: unusual financial transactions, increased encrypted communications, and a diplomat's comment that 'things are about to change.' One analyst connects all three: 'State A is preparing sanctions against State B.' A second analyst writes: 'The transactions are routine, the communications reflect a new protocol test, and the diplomat is speculating.' Both reports are plausible.
The foundational text. Weick's seven properties of sensemaking — grounded in identity, retrospective, enactive, social, ongoing, focused on extracted cues, driven by plausibility — provide the complete theoretical framework. Every meeting, every strategy session, every crisis response is revealed as a sensemaking process rather than a decision-making process.
Weick's most famous case study. The analysis demonstrates what happens when sensemaking fails catastrophically: role structures dissolve, group cohesion fragments, and individuals lose the ability to construct meaning from their environment. Directly applicable to any organisation facing conditions that change faster than its frames can update.
Klein's naturalistic decision-making research provides the empirical complement to Weick's theoretical framework. Klein studied firefighters, military commanders, and emergency room nurses — people who make high-stakes decisions under time pressure and ambiguity. His Recognition-Primed Decision model shows how experts construct meaning from minimal cues and act on provisional understandings that are continuously revised.
The definitive account of Amazon's narrative structure — the six-page memo, PR/FAQ, working backwards. Read as sensemaking infrastructure: mechanisms that force the construction of meaning from ambiguity before meetings begin. Design the construction process.
Hastings's account of Netflix's culture provides a longitudinal case study of serial sensemaking at the corporate level. The cultural mechanisms — radical candor, the keeper test, freedom and responsibility — enabled Netflix to repeatedly destroy and reconstruct its strategic narrative. Sensemaking is ongoing. Netflix's culture is designed to prevent it from freezing. The connection to sensemaking is implicit but powerful: the culture ensures the organisation can always construct a new narrative when the old one expires.
Weick's Mann Gulch analysis in full. The paper demonstrates what happens when sensemaking fails catastrophically: role structures dissolve, group cohesion fragments, and individuals lose the ability to construct meaning from their environment. Devastating in its clarity. Directly applicable to any organisation facing conditions that change faster than its frames can update.
Sensemaking Process — how meaning is constructed from ambiguity through action, observation, and narrative revision. Unlike analysis (which moves from data to conclusion), sensemaking moves from action to retrospective understanding in a continuous loop.
Framing shapes which cues get extracted and how they're bracketed into a narrative. The way ambiguous data is presented — gain frame vs loss frame, opportunity vs threat — influences which sensemaking narrative gets constructed. Framing doesn't add information. It directs the construction process.
Complex systems produce the ambiguous, non-linear phenomena that demand sensemaking. Systems thinking provides frameworks for constructing narratives about how parts interact — feedback loops, leverage points, unintended consequences. Sensemaking is the cognitive process; systems thinking is one of its analytical tools.
Leads-to
Complexity
Complexity is the domain where sensemaking becomes necessary. In simple systems, cause-and-effect is clear and analysis suffices. In complex systems — markets, organisations, ecosystems — causality is distributed, feedback loops create emergent behaviour, and the system's state cannot be fully characterised. Sensemaking is the cognitive process adapted to complexity: construct a plausible narrative that captures enough to enable action.
The highest-leverage sensemaking skill is not constructing narratives. It is destroying them. Every founder can build a story. The rare skill is recognising when your story has expired — when the data no longer supports the narrative that organises your company's efforts — and having the courage to kill it before it kills you. Hastings did this three times at Netflix. Most founders do it zero times. The discipline is scheduled narrative audits: every quarter, ask "is the story we're telling ourselves still the story the data supports?"
