The world isn’t run on ideas alone. Having a world-changing idea is great, but many big ideas are essentially worthless without proper execution. During one evening of the hackNY summer series, the 2012 Fellows got down to business with Chris Dixon. Chris is the co-founder of Siteadvisor (acquired by McAfee) and Hunch (acquired by eBay), as well as an angel investor. In this candid discussion about the business side of tech startups, Chris talked about the successes and failures he’s seen in the startup scene and gave us many tips for turning our dream business ideas into a reality.