The direct inspiration for this article was a piece (by a friend I won’t name) that complained about a “quantum increase” in something. The idea of a “quantum increase” or “quantum leap” is that at a sub-microscopic level, changes in the state of particles are discrete, not continuous. A particle’s energy goes from one level to another without going through intermediate levels. In other words, a quantum leap is the smallest amount of change possible. A lot of writers must think it means something else.

That’s just one of many scientific terms that get mangled in popular writing. Let’s look at a few more.
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