Then I posed the question to my students, most of whom had become DSC subscribers. Jonathan, one of my best students, had an answer. As a kid, he told me, he had watched his father shave frequently for his job. His father had bought Gillette razors because they were the best, and they were cheap. But his father also spent a big chunk of change on replacement blades. When Jonathan grew up and began to shave himself, he felt frustrated at how expensive it was to keep replacing Gillette blades. “Gillette has been holding us hostage,” he remembered thinking, “forcing us to buy their expensive
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