The ability to e.g. hold a complicated structure in your mind wasn’t particularly valuable for a pack of proto-humans in the African savannah.
Or, having access to paper and pen, it may actually be less valuable now than it was for a pack of proto humans. (The environment was pretty complicated even back then—competing tribes, complex network of alliances within a tribe, the habits of different animals, etc etc. But you couldn’t put it down, you had to keep it all in your mind)
Or, having access to paper and pen, it may actually be less valuable now than it was for a pack of proto humans. (The environment was pretty complicated even back then—competing tribes, complex network of alliances within a tribe, the habits of different animals, etc etc. But you couldn’t put it down, you had to keep it all in your mind)