" didn’t keep all the files in one place like existing online music sites. Instead they stored them on the hard drives of millions of users across the Internet. Andy Oram, one of the editors at my publishing company, made the point to me that the architectural implications of these programs were more important than their business implications. (This is a history that has repeated itself fifteen years later with bitcoin and the blockchain.) "

― Tim O'Reilly , WTF?: What's the Future and Why It's Up to Us