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Real wisdom delivered to Nudgeminder subscribers. A new nudge every morning, drawn from traditions across the world.
Peirce's pragmatist colleagues remembered him as brilliant and maddening in equal measure — partly because he kept insisting that the meaning of any concept is nothing more than...
Pick a mental model you've used at least three times this month — what did it predict in advance that you could have...
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A character becomes dangerous not when they lie, but when they become the last person in the room still using the old map. The philosopher of science Imre Lakatos described how...
What would someone observing your current creative project say you keep explaining away rather than confronting...
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Every mental model you carry was built during a previous version of you. Philosopher of science Imre Lakatos noticed something troubling about how scientists actually work: when...
What's the most recent explanation you gave yourself for why something didn't work — and does it protect a belief...
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A long apprenticeship teaches you the content of a craft. It also does something less noticed: it trains you to see problems as the kind that exist in that craft. The 20th-century...
What assumption inside your most developed skill or role have you not seriously questioned since you first learned it —...
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Every product roadmap is a theory of causation — a bet that action A will produce outcome B. The philosopher of science Imre Lakatos noticed that scientific research programs...
In the last quarter, what result did your team explain away — and what would have had to happen for that same result to...
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In 1945, Vannevar Bush published 'As We May Think' — an essay imagining a machine called the Memex that would store and link all of a person's books, records, and communications,...
In your current work, which step — finding information, or converting it into usable judgment — is the actual...
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Xerography — the invention of the photocopier — was rejected by IBM, General Electric, and RCA before Haloid Company (later Xerox) built a business around it. Every major...
Think of a technology or idea you've tried to explain recently that didn't land. What framework was the other person...
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Scientists are trained to doubt their conclusions — but almost nobody is trained to doubt their questions. Karl Popper, the philosopher of science, pointed out that what we can...
Name one problem you've been trying to solve — then write it as a completely different question and see if the new...
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Vilfredo Pareto discovered the 80/20 distribution while studying land ownership in Italy, but the insight that followed him into economics — and that product managers almost never...
What is the founding belief your current product strategy would collapse without — and who on your team is actually...
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The most dangerous errors in AI systems aren't the ones that crash — they're the ones that confidently produce plausible-sounding nonsense. Philosopher of science Karl Popper...
In the last 48 hours, did you verify a single claim produced by an AI tool — or did plausibility stand in for truth?
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The best science fiction thrillers aren't really about the future — they're about the moment a character realizes their mental map of reality no longer matches the territory. That...
When did you last discover that a confident assumption you'd been acting on was wrong — and what did you do first?
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In 1847, Ignaz Semmelweis proved that doctors were killing their obstetric patients by moving directly from autopsy rooms to delivery wards without washing their hands. The...
What evidence in your clinical or professional life have you consistently filed under 'interesting exception' rather...
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When a plan stops working, most people redouble their effort at execution — more discipline, more consistency, more willpower. What they rarely do is question whether the plan...
Name one area where you've been adding more discipline to a system that might simply be the wrong system.
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When a financial model produces a number you don't like, the tempting move is to adjust an assumption until it does. This isn't analysis — it's ventriloquism. The 14th-century...
In the last project or deal you modeled, which single assumption, if reversed, would have changed your recommendation —...
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When a team keeps solving the same problem in slightly different ways without ever noticing the pattern, they aren't failing at execution — they're failing at a prior level, what...
What is the one assumption your team has never seriously challenged — not because evidence supports it, but because...
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When a diagnosis is uncertain, most clinicians instinctively hunt for more data — another test, another consult, another imaging round. But the 11th-century Persian polymath...
In the last week, when did you receive a clinical finding that surprised you — and did you update your thinking, or did...
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In medicine, the pressure to project certainty can quietly distort judgment. The philosopher of science Karl Popper argued that the mark of genuine knowledge isn't confidence —...
Is there a diagnosis, treatment assumption, or professional belief you hold with confidence — and have you ever...
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