The copyright deal is, we the people will give you exclusive rights for a limited time, in return the work will then enter the public domain for all to use. If

The copyright deal is, we the people will give you exclusive rights for a limited time, in return the work will then enter the public domain for all to use. If at the start of the deal you ensure your work cannot fulfill the requirements of that deal, eg use DRM, then you do not enter into that deal as you have already refused it by not fulfilling your end. In your analogy, you're putting locks on a house, but you were only allowed to rent the house under the agreement that you wouldn't leave it locked up. and you didn't leave a key with anyone or do anything to make sure the house was unlockable. In fact the locks are booby traps that will destroy the house when your rental period is up, robbing those who would otherwise occupy the house of every having that opportunity ... yes, it's a protracted analogy because it sucks and these are different concepts.