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Parkinson's Law

technique

1 creator use or recommend it

▲ 1 active in the last 90 days

1 recommend 2 mention
Last discussed Oct 21, 2026

A principle stating that work (or resources) expands to fill the time (or space) allotted for its completion, often used in productivity and business contexts.

What creators say

Tobi Lütke
recommends
Used for: Understanding organizational behavior and the nature of how work expands Praised: Quick read; he loves it and repeatedly recommends it

"Books I come back to — I often talk about Parkinson's Law, which I love. It's such a quick read. I almost always will mention it."

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Tim Ferriss
mentioned

"All right, so applying Parkinson's law, creating a very tight deadline for yourself."

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Shaan Puri
mentioned
Used for: Explaining why shrinking time constraints improves productivity

"There's a thing called Parkinson's Law, which is like work expands to fill the time you give it. If you had moved that same meeting to 22 minutes, you would have got it all done in 22 minutes."

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