Crossing the chasm: from early adopters to mainstream market dominance
by @lennyrachitsky
ABOUT THIS BRAIN
Geoffrey Moore explains how disruptive B2B products must first win a narrow, high-value beachhead segment before expanding, because mainstream (pragmatic) buyers refuse to purchase until they see peer references.
TECHNIQUES
KEY PRINCIPLES (15)
Target a segment that is big enough to matter, small enough to lead, and a good fit with your crown jewels.
Aim for 30-50 % share of a sub-segment within two years; same geography, industry, profession and use-case so peers talk to peers.
Why: Ecosystem partners only rally around the segment leader; without dominance you cannot create the references pragmatists demand.
"You want to have a target segment that is big enough to matter, small enough to lead, and a good fit with your crown jewels."
Early adopters buy because they believe what you believe; pragmatists buy because they need what you have.
Visionaries fund bespoke projects for competitive edge; pragmatists wait until three or four peers have already chosen you.
Why: Visionaries make isolated decisions; pragmatists copy herd behavior to reduce risk.
"Before the Chasm, the customers you work with are people who say, we believe what you believe... After the Chasm, they say, I'm not sure about that, but we need what you have."
The marquee customer that puts you on the map must be a pragmatist, not a visionary.
Pragmatists will only accept references from people they see as peers; a visionary reference actually repels them.
Why: Pragmatists distrust visionaries and often have to clean up the messes they leave.
"The pragmatist looks at the visionary and goes, that's not my guy... I am interested in talking to my peers."
Concentrate all energy on one tightly adjacent kindling segment until the fire starts; spreading thin extinguishes the spark.
Running a match back and forth under a log never ignites; hold it under one piece of kindling, then add the next adjacent log.
Why: Marketing dollars and founder attention are scarce; focus creates the social proof cascade required to cross the chasm.
"It's like taking a match and running it back and forth under a log... you hold the match one place until the fire starts."
Expand only into adjacent segments where you can reuse either the same customer with a new use-case or the same use-case with a new customer.
Each new pin leverages references or partners from the previous pin, compounding credibility.
Why: Adjacent expansion preserves word-of-mouth and partner channels; unrelated segments reset social proof to zero.
"Adjacent means either it's the same customer with a different use case or it's the same use case in a different customer base."
In the Bowling Alley, the first meeting is never about your product; it is a diagnostic about the prospect’s problem.
Open with “We’ve been talking to others in your industry who struggle with X—do you have that?” then listen and take handwritten notes.
Why: Pragmatists are under duress and want therapy; demonstrating deep problem understanding earns the right to propose a solution.
"Leave the laptop shut... start with ‘we’re here because we’ve been working with some people in your industry... Is that true?’"
A segment must feel a pain so acute that they are forced to act faster than their natural risk-averse timeline.
Examples: ransomware exposure, patent-life losses, post-pandemic classroom gaps—quantified daily dollar loss works best.
Why: Without duress, the corporate immune system (IT, legal, finance) will stall the deal indefinitely.
"You need the customer to be coming toward you even though you're new and unproven... they're even more afraid of the problem."
Visionaries only need the 10× magic feature; pragmatists need a whole product that is stable and supported.
Delay crossing until the product can be installed and run without heroic services or bug fixes.
Why: Pragmatists have zero tolerance for broken software; one failure destroys peer references.
"Pragmatists cannot put up with a product that doesn't work... you may need to do some additional work... until the product has got enough stability."
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