A recent article in The Economist, citing the work of Ryan Raffaelli at Harvard Business School, points to what it calls a “paradox” in the aftermath of disruptive innovation. Some old technologies, after being rendered obsolete by better and cheaper alternatives (indeed even after whole industries based on them have been decimated), manage to “re-emerge” to the point that they sustain healthy businesses. Think mechanical Swiss watches, now enjoying strong sales. Or fountain pens, or vinyl records. Or small-batch, handmade goods – from vermouth to chocolate to pickles.