Colin,
I just did a search for the Professors name, Albert Bartlett, and found the following thread:
http://news.ycombinator.com/item?id=1382456
No, I did not check if this was posted before. However, these videos do such a fantastic job of explaining exponential growth and how such growth applies to our every-day lives I felt that I had to share them, even if they have been posted before.
I wish I saw this lecture while I was in school, the connection to real-life would have made the theory so much easier to grasp. Heck, I wish all of my teachers were like Dr. Bartlett, but that's not possible.
I'm really glad to have found this lecture and I wanted to share it with others who may not have been aware of it.
