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Christian, David

Collective Learning Part 2 (Article)
Foragers could create only very small collective learning networks because they lived in small groups and were constantly on the move. The development of agriculture provided increased possibilities for expanding and connecting networks of colle
Record-keeping and History (Article)
Humans were capable of collective learning before the invention of writing, but writing provided a way of recording human language and preserving it that dramatically increased the power of collective learning.
Time-Keeping (Article)
Why we need clocks and calendars. All life forms have some innate method for keeping track of time, but humans do it with greater precision and in more diverse ways than any other species.

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