I dont think you can eliminate the artificial scarcity, but I do support returning to the Orginal Copyright terms of the US

14 Years to the content creator, and 1 extension that has to be applied for by the creator personally (not a business, not an estate)

For Corporations the copyright term is 14 years, for an individual creator it would be at most 28 years.

none of this 100 years+ copyright monopoly we see today under current law

You have to match infinities with infinitesimals.

This is a pressure on our monetary system to enable efficient payments of ~$0.10. You could say that the ad industry's very existence and success is a statement and proof that our monetary system is too inefficient.

Google is filling a huge hole in the modern instantiation of money, which makes their success look inevitable.

> How do you propose to adjust capitalism's core reliance on scarcity and supply and demand (supply of a digital good is infinite!)

There is nothing wrong with capitalism when it comes to scarcity or supply and demand. It just doesn't apply to the supply of digital goods, or any other good which is superabundant (i.e. not inherently scarce).

Labor is scarce: the labor of writing new works, and the labor of distributing them. To the extent that there is demand for new works we will find some way to pay for the labor of creating them which doesn't involve undermining capitalism—along with people's natural property rights—in order to impose artificial scarcity. There are various existing, proven models to choose from which have resulted in quality productions in the past, including patronage, crowdfunding, sponsorship, donations, and open source. Each of these has its own strengths and weaknesses and the eventual solution will probably include all of them to some degree along with others we haven't thought of yet.