Everyone seems to be concerned about “impact” these days, so much so that a tortuous new adverb has arisen: “impactful.” Politicians stump about it, consultants analyze it, researchers theorize about it, and visionaries call for transformations of it. Whether the impact in question is social, environmental, or collective, the primary concern driving the impact conversation is exactly the same one driving the geologists’ naming of the Anthropocene era: that human beings are having unprecedented, and not entirely positive, impact on our planet, and particularly on the quality of other humans’ lives.