The Manual That Became a Mantra

Chapter 10 of this book is a bet, made in 1997, that electric vehicle performance would intersect mainstream demand for cruising range around 2015 and for acceleration around 2020. Christensen even shows his work — 2 to 4 percent annual improvement in EV performance against a nearly flat curve of what drivers actually need, plotted out in a chart with footnotes to a California Air Resources Board hearing. The actual timeline: Tesla's Model S arrived in 2012, the Model 3 in 2017, and by the early 2020s range anxiety had stopped being the default objection to EVs in most markets that could charge them. Christensen missed the exact vehicle and missed Elon Musk entirely, but the mechanism he described — an underperforming technology quietly closing the gap on an axis nobody in Detroit was watching — landed almost on schedule. That is a genuinely rare thing for a business book to survive intact into its fourth decade.

But the book's real afterlife isn't the EV chapter. It's what happened to the word "disruptive" once this book left the seminar room and entered the boardroom. Christensen's framework was diagnostic — a way of explaining, after the fact and with some predictive teeth, why Digital Equipment and Bucyrus Erie stumbled. It was not a call to arms. Yet within a decade "disrupt or be disrupted" had become the