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Daily Inspiration Quote by William Lyon Phelps

"In a start-up company, you basically throw out all assumptions every three weeks"

About this Quote

Startup life is a demolition derby for certainty: every few weeks, whatever you “knew” about the product, the customer, even the team’s plan gets totaled by reality. The line works because it punctures a comforting myth of progress-that smart people can reason their way to stability. Instead, it frames innovation as recurring amnesia, a disciplined willingness to treat yesterday’s conclusions as provisional.

Phelps is an educator, which sharpens the subtext. He’s not romanticizing chaos for its own sake; he’s describing a learning environment at maximum intensity. In a classroom, assumptions can linger for a semester. In a startup, feedback is immediate, public, and often brutal: a feature ships, users ignore it; a marketing angle lands flat; a competitor changes the rules; the runway shrinks. “Every three weeks” isn’t a literal sprint calendar so much as a tempo-a warning that the half-life of belief is short when you’re building in uncertainty.

The specific intent reads like a corrective to managerial theater. Startups love to borrow the language of strategy, roadmaps, and “vision” to sound legible to investors and recruits. Phelps’s phrasing cuts through that performance and quietly recommends intellectual humility as the real advantage. The best teams aren’t those with the most confident assumptions; they’re the ones that can discard them without ego, turning what looks like instability into a repeatable practice of adaptation.

Quote Details

TopicStartup
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Throw Out Assumptions Every Three Weeks in Startups
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About the Author

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William Lyon Phelps (January 2, 1865 - August 21, 1943) was a Educator from USA.

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