You can't beat physics. Why the chip manufacturers are heading for a wall. We asked nano-scientist Phil Moriarty Professor of Physics in the School of Physics and Astronomy, University of Nottingham EXTRA BITS: https://www.youtube.com/watch?v=gLF9z4dGKnw Teaching Physics in Ethiopia: https://www.youtube.com/watch?v=-_Gv9C56heM Is it the end for Moore's Law: https://www.youtube.com/watch?v=X8v1BB0UaDs Password Cracking: https://www.youtube.com/watch?v=7U-RbOKanYs Gamer's Paradise: https://www.youtube.com/watch?v=HZzdXR0bV8o http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com/