Mark Changizi is a cognitive scientist, with several previous books about his research, including Vision Revolution and Harnessed. He has been a researcher and/or professor at University College Cork, Duke University, Caltech, and Rensselaer Polytechnic Institute.
Tim Barber earned his PhD from Princeton in mathematics and has had a long interest in diagnosing the algorithms that underlie the uniquely human capacity for reasoning. He is a serial entrepreneur with highly successful companies such as Kount and ClickBank.
