One important thing that I feel this article left out was how technological innovation was driven by military endeavors. From antiquity to Europe getting comfortable with gun powder was a very long time. Prior to gun powder, the focus was on siege warfare - how to destroy walled defenses in a timely fashion before supply chains before untenable. With the rise of gunpowder, innovation followed. Alot of industrial success came out of America, and with a giant ocean between itself and any potential invaders, they were able to focus that innovation for industry as opposed to militarily.