In a new blog post written for the for the Chicago Sun-Times, film critic Roger Ebert, who has railed against 3D movies and television, offers up what he says is proof that the technology "doesn't work with our brains and it never will."

Ebert came to this conclusion after reading a personal letter from Academy Award-winning film editor and sound designer Walter Murch, another critic of 3D technology. Murch's letter argues that the problem with 3D is evolutionary. Our eyes and our brain, he writes, simply cannot keep up.