[pvn]

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Copyright ... is a voluntary contract - it only covers works that are developed based on the copyrighted work.

[/ QUOTE ]Alright. But you are not too clear about how one protects his copyright in AC land. Please elaborate.

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That's not my problem, it's for the guy who wants to protect his work to figure out.

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Patents, on the other hand, are involuntary, and if you independently invent something that someone else has patented, even if you have zero knowlege even of the existence of that patented item, you are infringing. That's a lot more than protecting your work, that's actively obstructing others' work.

[/ QUOTE ] And ?

And what ?

How do you prevent this from happening? How do you obtain compensation for it when it happens?

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You realize I'm talking about patent law is it exists currently - in an objectionable, non-voluntary form? You obtain compensation (which you are not legitimately entitled to) through your friendly neighborhood monopolist of violence.