Berkeley colleagues and students rib me about a vocabulary obsession I have.
I cannot abide and repeatedly object to the word “impact” –whether as verb or as noun — and to its variants, “impacted” and the grotesque “impactful.” It is acceptable, although inelegant, to write that the bat impacted the ball, or about the impact of a car on a pedestrian, or about an impacted tooth. It is not only inelegant but also logically and intellectually misleading to write about, say, the social impacts of a policy or how a technological device is impacting our culture Using “impact” to describe social or historical change impairs clear thought.
It is, alas, only one of the more blatant examples of how casual metaphors can undermine causal analysis.











