The other takeaway message of this is to take a critical look at things, and question assumptions. Averages can be deceiving when they mask distributions and what is really happening. You may be inclined for example, to think most of Sub-Saharan Africa have approximately the same issues with healthcare or economic development -- at least in the public mind they do.
I thought this would be relevant when discussing cost-effectiveness and development. Correlation does not imply causation, cause and effect and all that, etc.
Also the way he presents the data is really worth looking at. It's simply mind-expanding. Data presentation is far from making it look pretty -- it can tell you something new, that you might not have noticed.
The students here at UVA love TED talks -- from Commerce School students to biology majors to engineering students to Foreign Affairs students.