By the time Apple's Macintosh operating system finally falls into the public domain, there will be no machine that could possibly run it. The term of copyright for software is effectively unlimited.
Lawrence LessigWhile the creative works from the 16th century can still be accessed and used by others, the data in some software programs from the 1990s is already inaccessible. Once a company that produces a certain product goes out of business, it has no simple way to uncover how its product encoded data. The code is thus lost, and the software is inaccessible. Knowledge has been destroyed.
Lawrence LessigThe value of "one person, one vote," the value of equality, is a value that was given to us more than 50 years ago as a central part of our constitutional tradition. So, under that principle, we ought to be applying the same standard today that I would have said we should have applied a year ago.
Lawrence Lessig