Unfortunately the methodology of his graph demonstration is dramatically flawed...
He initially says that there are a lot of people 'off the bottom of the chart', and he says that right up front so that you forget about factoring it in.
Showing it starting from a 'zero line' showing only expansion, and then dramatically having it explode off the top of the page is a "zoom-in" trick, which makes it APPEAR as though the population is multiplying by an unimaginable and incomprehensible factor.
-If you actually zoom-out the magnification and INCLUDE the comparitively enormous green block at the bottom, it looks a lot less scary.
...Now...
I'm not saying he doesn't have a point... just that he's presenting it in a manner which misleads most of the people in the room. -Showing the reaction of the audience members when he dramatically extends the graph is a cheap trick, and the audience members don't look like they're necessarily smart enough to allow for the 'zoomed-in' scale... -I may be prejudiced in my assessment, but it's been my experience (for example) that people who habitually breathe through their mouth are often not the brightest specimens of the species...
-Just my observations.
Keith
