The Gumball Presentation

I generally try not to repeat any of the videos that I post here, but occasionally I think it productive to place this great demonstration back on top of the heap.... Hope you can appreciate the common sense approach that Roy Beck brings to this really important issue.  There is a "longer" version of this demonstration at http://numbersusa.com/  with graphs of the future populations we can expect if we don't get on top of it now.