The all-conquering encyclopedia of the twenty-first century is, famously, the first such work to have been compiled entirely by uncredentialled volunteers. It is also the first reference work ever produced as a way of killing time during coffee breaks. Not the least of Wikipedia’s wonders is to have done away with the drudgery that used to be synonymous with the writing of reference works. An army of anonymous, tech-savvy people – mostly young, mostly men – have effortlessly assembled and organized a body of knowledge unparalleled in human history. “Effortlessly” in the literal sense of without significant effort: when you have 27,842,261 registered editors (not all of them active, it is true), plus an unknown number of anonymous contributors, the odd half-hour here and there soon adds up to a pretty big encyclopedia.