Why startups are hard - the math of venture capital returns tells the story at andrewchenDear readers, I'm happy to announce I've completed my first year in my new role at a16z, and it's been a blast! I will write more about it coming up, but in the meantime, it's very timely that my colleague Scott Kupor has written a new book, Secrets of Sand Hill Road , with the fun subtitle "Venture capital and how to get it."andrewchen.com