Whether things will work the way Ms Salen hopes will, itself, take a few years to find out. The school plans to admit pupils at the age of 12 and keep them until they are 18, so the first batch will not leave until 2016. If it fails, traditionalists will no doubt scoff at the idea that teaching through playing games was ever seriously entertained. If it succeeds, though, it will provide a model that could make chalk and talk redundant. And it will have shown that in education, as in other fields of activity, it is not enough just to apply new technologies to existing processes—for maximum effect you have to apply them in new and imaginative ways.