If humans gradually figure out how best to live, then we should give a lot of weight to what has already been figured out over the years. But what if we end up with more humans? Do the behaviors of a billion current people count more than a million historical people? At first glance the answer is an obvious yes, but what if we add in the complication that current conditions are rapidly changing? Is it possible that behavior can't keep up? In this episode we examine the question and compare years of experience vs. human experienced years.