With founders like Mark Zuckerberg, Jack Dorsey and Bill Gates, it may seem like billion-dollar start-ups are all started by 20-something college dropouts.
But according to the new book, "Super Founders: What Data Reveals About Billion-Dollar Startups," the median age at which founders started their billion-dollar business is 34.
The book's author, Ali Tamaseb, a partner at the tech venture capital firm DCVC, says he spent thousands of hours combing through internet archives, interviews and reviewing thousands of LinkedIn and Crunchbase profiles collecting data — 65 different data points, to be exact, like age, education and experience — on every unicorn start-up started between 2005 and 2018.
"It took about four years," Tamaseb tells CNBC Make It.
Tamaseb says he collected over 30,000...