That was a well written essay with a non-sequitur AI Safety thing tacked to the end. His real world examples were concrete, and the reason to stop escalating easy to understand ("don't flood the neighbourhood by building a real dam").
The AI angle is not only even hypothetical: there is no attempt to describe or reason about a concrete "x leading to y", just "see, the same principle probably extrapolates".
There is no argument there that is sounder than "the high velocities of steam locomotives might kill you" that people made 200 years ago.
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