Thought in a Hostile WorldThought in a Hostile World is an exploration of the evolution of cognition, especially human cognition, by one of today's foremost philosophers of biology and of mind. The central idea of the book is that thought is a response to threat. Competitors and enemies make life hard by their direct physical effects. But they also make life hard by eroding epistemic conditions. They lie. They hide themselves. They seem other than what they are. Sterelny uses