cant account for variability of exemplars, new objects, changing viewpoints, the idea of a grandmother cell rejected. cant account how we can recognize variability of exemplars, new objects, how we see same object with different viewpoint. There may be cells that have a template for your grandma but it can be rejected when you think how costly it is to have so many different cells of things in your life. And it doesn't take into account your grandmas variable changes. Yet, common views can be recognized faster cause it matches your template, whereas other points of view may take longer cause you need to rotate your template.