Computers are really good at making copies of things. In a "Napster World" where every time someone expresses a market signal about the value of a song by downloading a copy of it; instead of there being one fewer copies of that song, there's now one more copy of that song; this is a really different economic proposition. This is a commons where the sheep shit grass. The more you graze the more you get.
from In Conversation With Cory Doctorow (Download his first novel)