Elad Gil has now launched two startups of his own. He sold one to Twitter, and has raised almost half a billion dollars for a second. That’s along with investing in some of today’s most successful companies, like Stripe, Airbnb, and Coinbase. His latest startup, Color Genomics, has attracted funding from top-tier investors like T. Rowe Price, Kindred Ventures, Pegasus Tech Ventures, and General Catalyst.