Full house at Systems Thinking Ontario, @DaveMallery explaining thermodynamics as a foundation for ecological economics. More of a challenge than I would inflict on a grad school class, this session was organized on request by the group while I was away. As I was skimming the prereadings, I came to appreciate how much systems theory I have internalized over 20 years. (OCADU, 205 Richmond Street, Toronto, Ontario) 20170419