[esrauch]

Except with digital content you must make a copy of it to transfer it as your sale. For that matter, you must make a copy (in some cases several copies) in memory simply to play it. Without any right to copy you have no rights at all.

Luckily for everyone the actual law is pragmatic. They don't set out some set of philosphy and then enforce whatever is concluded by these axioms being applied. The rules can be made arbitrarily to mitigate practical harm and neither the "but every number is technically in pi!" or "only rights owners have the right to control copying!" have any real world weight.