Is it possible that, sometimes at least, some of the activity that enables us to be the thinking, knowing, agents that we are occurs outside the brain? … This kind of idea is currently being explored by a wave of scientists and philosophers working in the areas known as “embodied cognition” and “the extended mind.” Uniting these fields is the thought that evolution and learning don’t give a jot what resources are used to solve a problem. There is no more reason, from the perspective of evolution or learning, to favor the use of a brain-only cognitive strategy than there is to favor the use of canny combinations of brain, body and world.