The relatively modest advance in technology over a span of 2000 years is a bit staggering to a modern reader who is consuming this book on an IPad that was not even conceptualized when they began reading books some 27 or 28 years ago. From 1989 until 2016 technology has danced at a staggering rate, one which makes the world of the 1980s a place that can barely be recognized from my current perspective. Apparently the modest technological change that led from sedentary hunting to subsistence farming took some 100 times as many years.
