Management & Organizations

One Rule for Greater Productivity: Protect Uninterrupted Time

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English translation of the Chinese post originally published 2021-09-06. Translated 2026-10-28 with AI assistance. Historical figures and claims have not been updated or independently verified. 中文原文

Reading guide

Most productivity methods draw on management theory. The founders of 37signals approach the issue through brain science: attention is among the brain’s scarcest resources and has high switching costs. Interrupt writing to make a slide deck, and you need time to shift gears. That transition is attention switching. Their culture therefore includes “protectionism”: preserve long, uninterrupted working blocks against meetings, approvals, reports, and other interruptions. They compare time to money: exchange it all for one-unit coins and you buy only scattered trinkets; spend it as one sum and you can buy lasting value. People busy across many projects may achieve less than someone focused on one. An hour and sixty separate minutes are entirely different.

Key points

  • Switching attention is particularly costly.
  • “Protectionism”: keep small interruptions out of working blocks.
  • One hour ≠ sixty separate minutes.
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Full text — English translation

We have discussed goals and opportunities. This post is about improving productivity. Many approaches to workplace productivity are based mainly on management theory. #ImproveProductivityByGivingEmployeesUninterruptedTime The founders of 37signals approach productivity through brain science. From that perspective, the method is simple: protect employees’ uninterrupted blocks of time. Give people long, complete working periods. Do not let meetings, approvals, reports, or any small matter interrupt them. #AttentionIsTheBrain’sScarcestResource One brain-science finding is that attention is among our scarcest resources. It has especially high switching costs. If someone suddenly asks you to make a slide deck while you are writing, you cannot instantly put down the draft and begin. You need time to get into it. That preparation is attention switching—like emptying a bottle before filling it with something new. So 37signals has a cultural principle called protectionism: protect attention and leave people uninterrupted time. Avoid interrupting them with anything if possible. Its founders compare allocating time to spending money. Suppose you have a large sum and exchange it all for one-unit coins. You can buy only scattered little things: plenty of variety, but little value. Spend the sum in one go, however, and you can buy something important with lasting value, such as a car or house. Many people look busy, joining projects everywhere, yet achieve ordinary results. Those doing one thing often produce more because they manage attention differently. To the author, an hour and sixty separate minutes are entirely different. Time must be whole, not fragmented.

These articles are personal notes, book excerpts, and collected reprints. Figures and events reflect the time of the original publication, are not current information, and do not constitute investment advice.

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