Mood is an ephemeral thing, changing with the seasons and eluding our control. Why are our moods so susceptible to drugs, the weather, and music alike? Hegel wrote of Geist and Heidegger rhapsodized over Stimmung, so can an age have a mood too? And if so, how do we read a Zeitgeist or measure the spirit of a time? Join us as we get moody.