What’s remarkable, however, is that few of the researchers who make the pilgrimage to see Friston these days have come to talk about brain imaging at all. Basements will often have spots that are colder than others. Of course, this means that players will sometimes surprise game designers by doing things even they never thought of. In this case, they decided to change the geography of the Jungle level so that in certain places players had to jump down a steep ledge to reach the next area. In ea...