This article is very interesting and agreeable to me. The author presents many important facts about the development of human society, of how science and technology have played, and could still play an important role in the growth of society and how we could further exceed the "natural population limits" of the earth. While the article points out some of these "perceived" ecological limits of the earth, the main idea is that in reality these limits are not as important as human creativity and the way in which we 'choose' to build society.
I wish the author would have had the opportunity to expand more about the real limits, technological and social. And how even now, despite the success of the propagation of our species, on our way here we left stranded roughly half the population despite many technological and social advances... And maybe how technology, misused, can be a double-edged sword.
Something that caught my attention was this paragraph:
"At their peak, those agricultural systems might have sustained as many as three billion people in poverty on near-vegetarian diets."
I was struck especially because according to statistics shown by Global Issues, almost 50% of the world's population now, or more than 3.5 billion live near or below the poverty line.  I guess not only we left them on the road, we left them living in prehistoric times.
I'll be looking for more writings from this author. "Muy" Interesting!
 Poverty Facts and Stats
Update Dec 17, 2013