This week, it's all about how to make the internet faster--and how the world changes when we do. David, Joanna and Christopher talk about Joanna's nationwide test of the new 5G network. Later, WSJ's Scott McCartney comes on to talk about the race to make airplane Wi-Fi better. (Though we'd even settle for "less bad.") In this week's Today I Learned, David explains the new tech behind the new "The Lion King." Finally, David interviews Marc Porat, the former CEO of General Magic, the company that tried to invent the smartphone in the '90s. And might have pulled it off, if the company had understood the internet.