Good article from Philip Greenspun. I agree with the ideas, more or less. In particular, the notion that newer countries who have avoided regulation and older war-torn or economically devastated countries have the best chance for growth. Works much like companies and their IT departments. The larger the company and more bottleneck PM's they have, the slower the progression. Start-ups have nothing to protect, few ego entrenchers to go up against, and therefore progress faster. In theory, anyway.
These theories apply to us as well. As we get older we accept less risk...and therefore our growth rate slows. We have more hooks into us. People counting on us. And plus, we're OLD! ;-)