"An authority isn't a person or institution who is always right – ain't no such animal. An authority is a person or institution who has a process for lowering the likelihood that they are wrong to acceptably low levels. [...] And this is what I think is really worth celebrating as Wikipedia begins its second decade. It took one of the best ideas of the last 500 years – peer review – and expanded its field of operation so dramatically that it changed the way authority is configured."