Learn from the next error

A test is useful when a result can change the decision. Producing an error and calling it learning is not enough.

Before the attempt, state what you expect to happen and what a different result would cause you to reconsider. That gives the result somewhere to go.

Build a correction loop

Consider a proposed change to a support form. You expect clearer instructions to reduce incomplete submissions. Try it in a limited setting, observe whether people still miss the same field, and inspect their explanation before changing the wording again.

The useful sequence is expectation, bounded attempt, observation, interpretation, correction. This is a practical synthesis. It does not establish that iteration always outperforms planning.

Errors also have social conditions. Amy Edmondson's 1999 study of 51 manufacturing teams found an association between team psychological safety and learning behavior. That finding supports taking the conditions for speaking up seriously; it does not validate this particular loop or every use of it. Research source.

What would count against the practice?

Run one small trial and record the decision it changed. If repeated trials produce activity but no useful discrimination between explanations, redesign the test. You may be observing the wrong thing.

Do not experiment casually where an error can harm someone who did not agree to bear the risk. In those settings, simulation, expert review, and stronger controls may need to precede any real attempt.

Source note

This work develops the concern in “Iterative Error-Correction,” published on 2026-02-26.