And this concept is shackling libraries today.<p>My local library will only allow one person to &quot;borrow&quot; a given e-book at a time. You must wait until someone else returns it before you can &quot;borrow&quot; it for a set period of time.<p>Obviously this is nonsense, and if the library were interested in efficient lending, they&#x27;d let everyone that wanted it borrow the e-book at the same time.<p>IMO, the same applies to DVDs - why not let thousands of people &quot;borrow&quot; a digital copy of a DVD simultaneously