Reminds me of a Schneier quote that I like:

'Every time I write about the impossibility of effectively protecting digital files on a general-purpose computer, I get responses from people decrying the death of copyright.

"How will authors and artists get paid for their work?" they ask me.

Truth be told, I don't know. I feel rather like the physicist who just explained relativity to a group of would-be interstellar travelers, only to be asked: "How do you expect us to get to the stars, then?"

I'm sorry, but I don't know that, either.'

"Protecting Copyright in the Digital World", Bruce Schneier http://www.schneier.com/crypto-gram-0108.html#7