This was originally published on Philosophical Disquisitions.
Consider your smartphone for a moment. It provides you with access to a cornucopia of information. Some of it is general, stored on publicly accessible internet sites, and capable of being called up to resolve any pub debate one might be having (how many U.S. presidents have been assassinated? or how many times have Brazil won the World Cup?). Some of it is more personal, and includes a comprehensive databank of all emails and text message conversations you have had, your calendar appointments, the number of steps you have taken on any given day, books read, films watched, calories consumed and so forth.
Now consider a question: is this information part of your mind? Does it form part of an extended mind loop, one that interfaces with and augments the mental processors inside your skull? According to some philosophers it does. They believe in something called the extended mind hypothesis, which goes against the neuro-physicalist wisdom and holds that the mind is not necessarily to be identified with the brain.… Read the rest