[adwn]

> If a work is entirely digital, what is the difference between the original and the copy?

The difference is that the original instance of the work potentially required considerable time and money, whereas its copies are essentially free to produce. There's no difference between the bits of the "original" and the bits of each copy, but concluding that copies of a work should be free for all because the act of creating that copy is free, is fallacious and intentionally misleading.