Most people believe they think clearly. What they actually do is react, rationalise, and call the result a conclusion. The machinery of bad thinking is not random. It follows patterns, and those patterns are so reliable that once you learn to spot them, you start seeing them everywhere: in policy debates, in boardrooms, in your own head at 2 a.m.
This is not a catalogue of stupidity. Intelligent people are often the worst offenders, because intelligence gives you better tools for defending a bad position. The smarter the person, the more elaborate the fortification around his errors.

1. First-Order Thinking
First-order thinking is the reflexive, surface-level response to a situation: "If I do X, then Y happens." It sounds reasonable in isolation, but it ignores the cascade of consequences that follow. The world is a system of interconnected feedback loops, not a series of isolated cause-and-effect pairs.
Someone sees a problem, identifies the most obvious intervention, and stops thinking there. He never asks "and then what?"
A city has a housing shortage, so the government caps rents. First-order: tenants pay less, problem solved. Second-order: landlords stop maintaining properties because margins disappear. Developers stop building new housing because the returns no longer justify the risk. Third-order: the housing supply shrinks further, the shortage worsens, and a black market develops. The people the policy was designed to help end up worse off.
First-order thinking is not just lazy. It is seductive. The first-order solution almost always feels right because it maps directly onto the visible problem. The second and third-order effects are invisible at the time of the decision. They live in the future, distributed across many actors, and often look like entirely new problems rather than consequences of the original choice. This is how first-order thinkers implement catastrophically bad policies while feeling morally certain the entire time.
The discipline is simple, if uncomfortable: after every proposed solution, run at least two rounds of "and then what happens?" and pay special attention to how other actors in the system will adapt their behaviour.
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