At the end of the 19th century, economists were arguing that poverty was caused by there being too many people for the surrounding land to support. Evidence for this was that one saw almost no poverty in frontier towns, and plenty of poverty in large cities. Limited resources could only be stretched so thin.
Henry George, in his book "Progress and Poverty", called BS on this. Due to specialisation of labour, he argued each additional person meant there'd be *more* to go around, not less.
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In a frontier town, yes, everyone can cut their own wood, mend their own shoes, and gather their own food.
But in a new frontier town, everyone *has* to do these things, because there is no woodcutter, no cobbler, no grocer.
George argued that frontier towns didn't have abject poverty because they *also* didn't support grandiose wealth. The conditions of the frontier were leveling.
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