Efficiency = Leverage?

An interesting view I'm still trying to grasp...anyway...an excerpt below for your consideration:
(from Mr. Taleb goes to Washington)

We cannot have both debt leverage and a hyper-efficient system—the volatility is just too great. What Taleb explains—which no one else does—is that efficiency is already a form of leverage. A highly efficient system removes slack and magnifies small changes. Think of the efficient system as a high-performance aircraft. Each minute of steering input creates a rapid and violent shift of course, speed, or altitude. The system itself is souped up even before you add the debt. Once you do, the pilot is equally jacked up and twitchy, creating an explosive combination. Now imagine that fighter jet trying to fly in a 1,000-plane formation, and you get an idea of the world financial system in the 21st century