[Y_Y]

I dunno man, did you see what I wrote a couple of lines down? There are ways of selling things that must be sold, I mentioned auctions, but also you can get independent assessments like in the case of compulsory purchase/eminent domain.

I'm sure you could object to some particular solution I propose, but people much smarter than me have studied this kind of game theory extensively and there are a lot of options.

The normalization can be the same as licensing is done now, "per work", negotiating specific usages needn't change, except that the seller has to allow that each covered work be subject to at least one must-sell auction per e.g. year. They can even win the auction themselves if all the bids are too low.

[eru]

> They can even win the auction themselves if all the bids are too low.

Does the auction have any teeth at all in that case? Just always bit an infinite amount of money, if you don't want to sell.

[Y_Y]

Maybe I should have said so explicitly, but in that case the seller would have to pay someone else, e.g. a common fund for promotion of the arts, or general taxation, or to the other bidders in portion to their bids to compensate them for not having any way to access the work.

Are you arguing that the idea is impossible in principle? The details will depend on what sort of incentives you want to end up with, but I can't see yet that there isn't some reasonable solution.

[eru]

You can probably come up with some messy compromise. But I'm not sure it's really much better than the existing system which already comes with fair-use constraints.

Or you could eg charge people a certain tax as a proportion of their self-declared value of the copyrighted material. (With the provision that they need to sell the rights to that material at the self-declared value to any comer or something like that.)