this post was submitted on 02 Aug 2025
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The one bit of reasoning I especially liked was connecting the fact that it is harder for plants to adapt to different latitudes than to move east-west to the difference between empires in South America versus in Eurasia.
It is a very reasonable idea, armies travel on their stomachs and good crop plants are essential. Yeah it’s full of holes in reality, but it represents a way of thinking that can be the beginning of wisdom if pursued in a disciplined way.