Is copyright really worth its existence?

Imagine that an archaeologist finds an ancient book but nobody can make copies for other scientists to read it because of copyright laws. That’s happening with old and important jazz recordings, as explained in the post by the law professors of The Volokh Conspiracy » The High Cost of Copyright:

It’s not just that copyright protection lasts absurdly long, still protecting recordings made more than seventy years ago; it’s that copyright, inherently, operates to the detriment of the public when applied in retrospect, to works that have already been created. Lester Young, alas, can no longer be incentivized to produce these performances — they’ve already been created. We won’t get any more brilliant performances by Teddy Wilson if we protect these works. All we — the public — get from applying copyright here is a restriction on our ability to encounter magnificent works of art.

I read this article after reading The Real Reason for Germany’s Industrial Expansion?

Did Germany experience rapid industrial expansion in the 19th century due to an absence of copyright law? A German historian argues that the massive proliferation of books, and thus knowledge, laid the foundation for the country’s industrial might.

Makes you wonder …