>. Let’s say I write a book or record an album and there is no copyright. How do I get paid?

I've purchased books that were in the public domain and without copyright. I've paid for albums I could already legally listen to for free. I've paid for games and movies that were free to play and watch. I'm far from the only person who has or would.

The people who pirate the most are also the ones who spend the most money on the things they pirate. They are hardcore fans. They want official merch and special boxed sets. People want to give the creators of the things they love their money and often feel conflicted about having to give their cash to a far less worthy corporation in the process. There are people who love music but refuse to support the RIAA by buying albums.

There are proven ways to make profit in other ways like "pay what you want" or even "fund in advance" crowdsourced models. If copyright went away or, more ideally, were limited to a much shorter period of time (say 8-10 years) artists would continue to find fans and make money.

1. There are an infinite number of careers that do not currently exist, because their business models do not make sense. I do not think it's a great idea to keep laws on the books, that limit the creativity and rights of hundreds of millions of people, just to keep a few professions afloat.

2. You greatly underestimate the creativity of a capitalistic market. For example, on the web, it's generally difficult and frowned upon to copyright designs. Some patent trolls do it, but most don't. If you make an innovative design for your website, you're bound to be copied. And yet many programmers and tech companies still have viable business models. They simply don't base their entire business model around doing easily-copyable things.

It's not obvious at all! You are citing the only difference that typically comes up. A quesadilla is beyond trivial to reproduce and most people have the ingredients readily available. 3D printers make it trivial to reproduce things that would have been obviously hard to reproduce a few years ago. A book is hard to reproduce if it's not in digital form. Is MIDI a song or a set of instructions? Source code is easy to copy but hard to reproduce. Source code is just a recipe telling a compiler what to do. And we've already established that recipes aren't copyrightable because it was "so obvious" at the time copyright was established that you shouldn't be able to copyright the creative process.

It's a good example of what happens when a copyright is expired.

I imagine they're licensed--the original creator or their estate had to be looped in to make them happen, and probably financially benefitted.

If the book is the compiled work, then the source of a book is the author's creative process. And certainly that isn't open to all simply by purchasing the book.

But less obtusely: you don't copyright a book--which is why knowledge, language, literature should not be closed source. We'd have to find a different model to support authors than trying to prevent people from copying books. Patreon style models where you subscribe and get behind the scenes access to the creative process, additional content, early access, etc. seem to work well as do sponsorship models like YT where the more viewers you draw the more you get paid, rather than a fixed fee per individual to watch a video. And, simply pay-what-you-want based models where everyone understands they can contribute in a way that matches the value to them and their means also work. One of the strongest arguments for piracy is that the pirate would never have paid $700 for Photoshop in the first place so the value "lost" isn't real and never would have been realized by the author(s). (Note this argument doesn't work for petty theft of physical property because the thief deprives the owner of tangible property.)