In 2011, Wael Ghonim created a Facebook page that sparked the overthrow of the Egyptian regime. Since then, the former Google marketing director has kept a close eye on social media's evolution, and has plenty to say about where it's gone wrong, and how it can get better. Ten years after Cairo residents painted "Facebook" on the walls after the revolution, Ghonim stops by Big Technology Podcast to revisit what happened and where we go from here.