In 1999, the Mars Climate Orbiter burned up in the Martian atmosphere. The problem? Lockheed Martin and JPL, who had teamed up for the project, assumed that all was well, and never realized that they were using different units of measurement.
So instead of looking for reasons why your plan is working, look for evidence that it’s not—in other words, try to prove yourself wrong. In this way, you’ll resist deeply entrenched biases, and you’ll open yourself up to competing facts and arguments. The goal should be to find what’s right, not to be right.
