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It could easily be done with instinct, and not involve "intelligence" in any real way. For instance the Golden Ratio is all over the place in plants and animals, but it doesn't mean any of them k...
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#1: Attribution notice removed
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System
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2021-03-30T23:53:14Z (over 3 years ago)
Source: https://worldbuilding.stackexchange.com/a/27737 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/