Carlo Rovelli is making the case in his book #anaximander that 600bc is when modernity really started. The Ionian Greek philosopher from Miletus was the first Homo Sapiens (indirectly attested) to seek explanations of reality without invoking mythical causes, insisting purely on explaining nature within itself: Rain and thunder are not caused by "Zeus" but by evaporation etc.
We could argue that this is when the seeds of our unsustainability were planted. But it took millennia to see...
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