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Mental Models

Thank You, Errors

The errors of some carry benefits for others. When you are fragile, you depend on exact planned courses; when you are antifragile, you welcome deviations, as trial and error uses errors as valuable information to narrow down solutions.

THE IDEA

Now we get into errors and how the errors of some people carry benefits for others.

We can simplify the relationships between fragility, errors, and antifragility as follows. When you are fragile, you depend on things following the exact planned course, with as little deviation as possible—for deviations are more harmful than helpful. This is why the fragile needs to be very predictive in its approach, and, conversely, predictive systems cause fragility. When you want deviations, and you don’t care about the possible dispersion of outcomes that the future can bring, since most will be helpful, you are antifragile.

Further, the random element in trial and error is not quite random, if it is carried out rationally, using error as a source of information. If every trial provides you with information about what does not work, you start zooming in on a solution—so every attempt becomes more valuable, more like an expense than an error. And of course you make discoveries along the way.

When to use it

  • Risk management: Design systems that absorb small shocks and learn from errors rather than avoiding all risks.

  • Innovation: Encourage rapid prototyping and iterative testing to turn failures into learning opportunities.

  • Before a speculative experiment, limit the amount at risk and decide what evidence would justify continuing, revising, or stopping it.

  • Personal development: Adopt a growth mindset that treats failures as data points for improvement.

FROM THEORY TO EVERYDAY LIFE

In practice

01

Startup Product Development

A startup tests small versions of product features and records what customers use or reject. The team uses those observations to revise its next test. A failed feature is informative when the test distinguishes between plausible explanations; it does not guarantee eventual product-market fit.

02

Scientific Discovery

An experiment produces results inconsistent with a hypothesis. Researchers examine whether the result challenges the hypothesis or reflects a problem in the design. A negative result can guide the next experiment without every failed attempt being equally informative.

✳

A MOMENT TO REFLECT

Put it to work.

  1. In what areas of your life or work do you depend on precise predictions, making you fragile to unexpected deviations?

  2. How can you reframe a recent mistake as a source of information that guides you toward a better solution?

  3. What systems or habits could you build that allow you to benefit from small errors rather than suffer from them?

Connected ideas

Another lens can bring the same problem into focus.

Often confused with

CONTINUE THE CONVERSATION

Source texts

  • Antifragile (Nassim Nicholas Taleb)
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