In this blog we shine the light of evolution on the little events and odd corners of everyday life. For the past 40 years we have been exploring what happens when there’s a gap between the emotions and expectations developed in hunter-gatherer bands and the requirements of life in large, hierarchical societies. We’ve written books on psychotherapy, education, and organizational life in that time and have also sketched out many shorter “flashes” about how human evolution might inform anything from obesity to anxiety. We’d like to share some of our thoughts with others who are wrestling with the meaning of human evolution in modern societies and learn from their ideas and experiences.