And did our thinking about the importance of being good at arithmetic change in response? I think so. We also used to be much better remembering things, when w

And did our thinking about the importance of being good at arithmetic change in response? I think so. We also used to be much better remembering things, when we relied on oral histories, our memory skills have degraded quite a bit. And there's a quote from Socrates criticizing how writing is a crutch that degrades our skill (https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.01.0174:text%3DPhaedrus:page%3D274 https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1... , the last bit). Over time, we've just moved to valuing other things more.