An evolutionary psychologist might posit that our primitive brains adapted to use numbers as gauges of risk and reward — our tribe might be able to take one lone lion or gorilla and get food, but a whole pride or band would be a threat to run from.
I think this flows from a) most people are incredibly uncomfortable with uncertainty, and…
Marc Milgrom
31

I’d say the numbers back then would be “one,” “two,” “many,” “lots,” <g> but yes, I agree with that.

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