But with practical, economic and ubiquitous on-line means, this is no longer a barrier. Under this recommendation the works must remain available from the copyright holder or their licensee. This privilege is assigned by a contract between an author and publisher, mediated by an agent and editor. Therefore, a part of the provision might ban author-publisher contract clauses with these reversion changes. An author may sometimes seek to remove a work from circulation, perhaps the work becomes embarrassing or dated and needs to be revised.
Digital technologies enable flawless duplication of information.
The exploding bandwidth and plummeting costs of the Net allows rapid communication of vast amounts of digital information for pennies. These technologies cannot be un-invented. The genie cannot be put back in the bottle. Many Netizens routinely engage in exchange of pirated software, intellectual property or content illegal in some jurisdictions. Digital-rights management technology may raise the pirating bar a few notches, but there is little doubt that clever hackers will leap them, followed by common Netizens.