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Why would a bad dependency ratio mean we stop using industrial fertilisers? If anything it's the opposite, using more fertiliser and technologies to cope with labour shortages.

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I assert at least one person is required to run the fertiliser plants; but if that is wrong, my whole proposal falls apart, and swiftly

that would also imply that if we were to see a labor force contraction that fertilizer production would be the hardest hit, and first.

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