Something a little different today. If you’ve got an hour to spare, I urge you to watch this video. Its fairly old and crappy quality but it’s still extremely relevant. Dr Andrew Bartlett presents a lecture on the exponential function and how it applies to sustainability, growth and resources. Deniers who think we can just go on the way we are more than likely have no idea of basic arithmetic. Sit back, relax, take notes. It’ll be worth it.