People used to memorize stuff. They’d memorize a lot of stuff. The geniuses of the Stone Age did little things, like finding better ways to make fire, flint kn

People used to memorize stuff. They’d memorize a lot of stuff. The geniuses of the Stone Age did little things, like finding better ways to make fire, flint knap, leather processing, weaving and looms, tent making, taming animals, inventing the wheel, food preservation, which plants were good for what ailments. You know, all the stuff you need without question.