Hi, I'm brillig. On p.183 of his bestselling book "Self Matters," Dr. Phil (a.k.a. Phillip McGraw) claims that college student volunteers wore specially designed glasses that inverted what they saw. They attended classes, crossed busy intersections, drove cars, and fell down flights of stairs with their vision impaired by glasses that they volunteered to wear. My question is : Are you aware of, or can you document any such experiment being conducted? When? Where? At what college? Dr. Phil does not answer these issues, and so, his claim is undocumented. I say this claim is a (pardon my French) fabrication. Thanks, brillig.