Professor Lawrence Lessig comments on National Public Radio's All Things Considered on Mark Halperin's book Digital Barberism - A Writer's Manifesto:

One of the most prominent opponents to Helprin's idea to extend copyright has been Lawrence Lessig. He's a professor of law at Stanford University and the founder of Creative Commons, a system that allows creators to opt out of certain copyright protections.

Unlike Helprin, Lessig believes in the power of group collaboration to build ideas. So instead of writing a response himself, he created a wiki and asked his followers to work together to write it.

He says that he understands Helprin's concerns about intellectual work being altered, but that as a published author, it comes with the territory.