This is why there are no legal, political, or economic solutions to the general problem of copyright, either. The only solutions that are even theoretically possible rely almost entirely on ideology backed up by a massive coercive force.
But mere impossibility isn't enough to make people give up. They'll keep trying and trying and just think that they didn't try hard enough, never wondering why people always seem to be able to find countermeasures. Maybe they can just ban the + program, any other use of it be damned? Oh, but we have - too. Well, there aren't that many functions on a pocket calculator, are there? Maybe you can ban them all? Maybe we could get that Godel guy to help us figure this out....
http://boingboing.net/2011/12/27/the-coming-war-on-general-p...
Memory is theft. That's why I choose to stay ignorant - stupidity will never be outlawed.
I would love to see a lawyer in a courtroom ask the jury if people should be allowed to copyright or patent a number. Then show them a written numerical representation of the work in question (preferably compressed).