Having heard Peter Schwartz speak several times, I am certain he is quite intelligent, extremely well-informed, and imparting valuable information. The focus of this article is a meaningless nuance -- that the peak oil theory is more about difficulty and expense and less about ultimate scarcity. In the "less about scarcity" angle he may or may not be entirely right, but this is irrelevant to the key issue: that changing our sources of energy, as well as learning to use less energy, is really what's important, due to climate change and other factors such as the dangers of shifting geopolitical wealth and the economic strength to be derived from developing a new energy economy. The point of his lecture is always about how best, then, to negotiate the changing energy economy. And for those who doubt his acumen on the subject, he has done quite well in his business of guessing the future.