MEHRAN SAHAMI was recruited to Google in its start-up days by Sergey Brin and was one of the inventors of email spam-filtering technology. With a background in machine learning and artificial intelligence, he returned to Stanford as a computer science professor in 2007 and helped redesign the undergraduate computer science curriculum. He is one of the instructors of Stanford’s massive introductory computer programming course taken by nearly 1,500 students per year. Mehran is also a limited partner in several VC funds and serves as an adviser to high-tech start-ups.