Over the forty-year history of interactive computer graphics, there have been con-tinuous advances, but at some stage this progression must terminate with images being sufficientlyrealistic for all practical purposes. How much detail do we really need? Polygon counts over a fewmillion imply that on average each polygon paints less than a single pixel, making use of polygonshading hardware wasteful. We consider the problem of determining how much realism is requiredfor a variety of applications. We discuss how current trends in computer graphics hardware, and inparticular of graphics cards targeted at the computer games industry, will help or hinder achieve-ment of these requirements. With images now being so convincingly realistic in many cases, criticalfaculties are often suspended and the images are accepted as correct and truthful although theymay well be incorrect and sometimes misleading or untruthful. Display resolution has remainedlargely constant in spatial terms for the last twenty years and in terms of the number of pixelshas increased by less than an order of magnitude. If the long-promised breakthroughs in displaytechnology are finally realised, how should we use the increased resolution?