Why Human Beings Are the Only Creatures to Develop Reason

Spervian Mercier's new book argues that humans are the only creatures to develop reason in this way. From an engineering point of view, what would a cognitive superpower even look like? When we look at actual software, when we look at things that solve Cognitive Problems, they tend to look like modules. They tend to look very similar to the type of opaque inferential modules he describes.