Roll because you agree

"Social Contract and rules: This is where all those 'What is Role-playing' sections fall flat on their face. Just to pick the most glaring examples, I'm here to say that role-playing is not, and never was, 'cops and robbers with dice to resolve disputes.' Going by the model, people roll dice (or whatever) because they agree about the imagined events, not because they disagree."

- Ron Edwards in "The whole model - this is it" post on The Forge, 11/11/2003