Introduction: In response to Scott Barry Kaufman’s article yesterday arguing the right-left brain hemisphere split isn’t true, the main proponent of the view, Iain McGilchrist, responds: Scott Barry Kaufman would appear to be way behind the curve on the topic of hemisphere differences. It is true that there is a diminishing band of people – often life coaches and management seminar psychologists – who still go around mouthing the sort of nonsense with which he starts his article: