“I go to a lot of demo days. I meet entrepreneurs at the best schools all over the world. I can’t say any impressed me as much as this (demo day) did.” Bay Area VCs attend a lot of demo days and hear a lot of startup pitches. But it’s rare that the entrepreneurs “have to build software without access to the Web and without ever touching a smartphone or tablet.” It’s also rare when the tech incubator is in San Quentin.