Bob Metcalfe, who co-invented Ethernet, founded 3Com and formulated Metcalfe's Law, has recently relocated to Austin (he how serves as Director of Innovation and teaches the "One Semester Startup" course at the Cockrell School of Engineering at the University of Texas). Hear his perspectives on relativity, new media in Central Texas, young entrepreneurs, venture capital, the tech bubble and more in this lively one-hour conversation.