 Aphantasia comes on a spectrum. Researchers put together the so-called ‘vividness of visual imagery questionnaire’, which indicates how vivid one’s (visual) mental imagery is. Aphantasics score very low on this scale. People with very vivid mental imagery (often referred to as hyperphantasics) score very high. But most people are somewhere in between. These interpersonal variability in the vividness of mental imagery should make us even more wary of using introspective criteria for characterizing mental imagery as this would give different results in different people on different parts of the aphantasia-hyperphantasia spectrum.