I meant to write the final post of the series dealing with the crisis of the European Union. But the events are moving very rapidly, and the approach to current events which I take in my blog is to look into their historical roots. Additionally, it’s shaping as a sad post

During the Spring semester I teach a class in Cultural Evolution for about 150 students. We use a ‘clicker’ technology that allows me to poll all students in the class electronically. Every year I ask them, in what state was the most complex, largest-scale pre-Columbian society in Nor