What makes us human? The way we think is surely part of the answer. Among our thinking skills, self-awareness is a promising candidate for the cognitive capacity that sets us apart from the other animals on earth. The distinction is not absolute – evolutionary differences seldom are. We know that chimpanzees can recognise themselves in mirrors, and to that extent are self-conscious. But it is likely that we and only we have a really well-developed understanding of ourselves as subjects of experience — as animals with minds. [.] These capacities, for “theory of mind” and mental time travel, together with our closely related talent for language, have been identified by many contemporary thinkers — in psychology, anthropology and elsewhere — as the intellectual hallmarks of adult humankind. But if we want to understand how we experience the world, listing capacities does only half the job, as it says little about the content of our self-understanding.