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Should We Reevaluate the Precautionary Principle?

In March 2011 a 9.0 magnitude earthquake triggered a tsunami which led to the automatic shutdown of the Fukushima Daiichi nuclear reactor in Japan. While the reactor’s shutdown sequence started well, waves from the tsunami breached the nuclear plant’s seawall to flood and disable backup generators. Without the generators cooling the reactor’s nuclear core there was a meltdown and radioactive leakage. In this extreme series of events, what was the best way forward?

The Japanese government took action and required approximately 154,000 people to evacuate, the seemingly safe choice.

But was seemingly safe the right choice? Continue reading “Should We Reevaluate the Precautionary Principle?”

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The Self-Defeating Prophecy (and How it Works)


I write these posts to call attention to common phenomena that make the world work differently than we might think. One less discussed type of unintended consequence is the “self-defeating prophecy,” or “self-negating prediction,” where the existence of a prediction or belief ultimately leads to the opposite of what is expected.

Continue reading “The Self-Defeating Prophecy (and How it Works)”