Albert Bartlett might have been another obscure physics professor had he not put together a now famous lecture entitled "Arithmetic, Population and Energy" in 1969. The lecture, available broadly on the internet, begins with the line: "The greatest shortcoming of the human race is our inability to understand the exponential function."
The logic is surprisingly simple and irrefutable. Exponential growth, which is simply consistent growth at some percentage rate each year (or other time period), cannot proceed indefinitely within a finite system, for example, planet Earth. The fact that human populations continue to grow or that the extraction of energy and other natural resources continues to climb does not in any way refute this statement. It simply means that the absolute limits have not yet been reached.
Bartlett, who died this month at age 90, gave his lecture all over the world 1,742 times or on average once every 8.5 days for 36 years to audiences ranging from junior high students to seasoned professionals in many fields. His ability to stay on message for so long about something so important should make him the envy of every modern communications professional.
Related site: albartlett.org
Related previous posts:
Miguel Barbosa’s Interview with Albert Bartlett
Arithmetic, Population, & Energy and The Crash Course
Video: Arithmetic, Population and Energy - FULL LENGTH
Video: Al Bartlett Interview