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At an early stage, a poor country with a surfeit of labour is better served by maximising its crop production until the return on any more labour falls to zero. Put another way, you might as well use the labour you have – even if the return per man hour looks terribly low on paper – because that is the only use you have for your workers. A gardening approach delivers the maximum crop output, as any gardener knows.

How Asia Works

Joe Studwell

A stored food surplus built up by taxation can support other full-time specialists besides kings and bureaucrats. Of most direct relevance to wars of conquest, it can be used to feed professional soldiers. That was the decisive factor in the British Empire’s eventual defeat of New Zealand’s well-armed indigenous Maori population. While the Maori achieved some stunning temporary victories, they could not maintain an army constantly in the field and were in the end worn down by 18,000 full-time British troops. Stored food can also feed priests, who provide religious justification for wars of conquest; artisans such as metalworkers, who develop swords, guns, and other technologies; and scribes, who preserve far more information than can be remembered accurately.

Guns, Germs, and Steel

Jared Diamond

Reporter: What’s your take on the emerging panic over the sophons? Ding Yi: It’s due to a lack of common knowledge about physics. Representatives of the government and the scientific community have explained this on numerous occasions: A sophon is just a microscopic particle which, despite possessing a high intelligence, has the potential for only a limited effect on the macroscopic world due to its microscopic scale. The primary threats they pose to humanity lie in their erroneous and random interference to high-energy physics experiments, and in the quantum entanglement network that monitors Earth. In its microscopic state, a sophon cannot kill, and it cannot engage in any other offensive attack. If a sophon wants to produce a larger effect on the macroscopic world, it can only do so in a lower-dimensional unfolded state. And even in that situation, its effects are highly limited, because a sophon unfolded in lower dimensions on a macroscopic scale is very weak. Now that humanity has established a defense system, sophons cannot do this without providing us with an excellent opportunity to destroy them. I believe that the mainstream media ought to do a better job of disseminating this scientific information to the public to rid it of a panic that has no basis in science.

The Dark Forest

Cixin Liu

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