As the world looks for ways to stay occupied in lockdown, many are turning to online classes to supplement careers or schooling. While access to online education has been growing over many years, the concept of free learning was uniquely popularized in 2008 by the founding of Khan Academy, which offers video lessons and other online tools on topics from math to history to navigating your career. Cheddar's Nora Ali talks to the founder of Khan Academy, Sal Khan about the future of free online learning and closing the digital divide.