We argue that the commonly used metrics for science communication video engagement, such as the number of views, reveal little about the longer-term impact on viewers. To explore this potential impact, the authors analyzed the comments of a video they created with Kurzgesagt, a professional science communication YouTube channel with 20 million subscribers. The video, “We lied to you…and we’ll do it again,” directly addresses the challenges of simplifying complex content for viewers. Such simplifications will never be able to capture a scientific topic’s nuances, so Kurzgesagt strives for transparency about each video’s limitations, with the goal of inspiring viewers to learn more.