Re: 2, why should someone recreating a work of their own invalidate their right to the original? I think current copyright laws are ridiculous, but within that

Re: 2, why should someone recreating a work of their own invalidate their right to the original? I think current copyright laws are ridiculous, but within that framework why can’t a creator have two version of something they name the same thing at the same time? While I’m not a fan of Hitchhiker’s Guide to the Galaxy, should the movie invalidate the copyright on the radio shows that invalidated the copyright on the books that invalidated the copyright of the original radio shows? I have more concerns about companies sitting on works in a “vault” for decades. If a rightsholder isn’t making public a work they’ve been given exclusivity to to encourage developing collective culture, they should forfeit that right, IMHO. On the other hand, if I was paid royalties for all of the code I have that’s still running somewhere on some system and generating revenue somewhere, I’d probably fight to keep that money coming in, too!