“The greatest shortcoming of the human race is our inability to understand the exponential function.”  ― Dr. Albert A. Bartlett, 1923-2013, Professor Emeritus, Physics, University of Colorado, Boulder. We deem this video essential viewing for everyone not highly versed in the exponential function, since understanding exponential change is key to grasping the speed and devastation of climate change and its correlated impacts, as well as the depletion of resources like oil.  For more information on Dr. Bartlett's presentation, see his website.