"A year ago today, the beta version of Clubhouse went live. It’s now worth a billion dollars. While its founders have created a hit, they’ve also walked into the hardest question in tech—and the app’s future might depend on if they can solve it." "Paul Davison and Rohan Seth’s audio-only app is the tech crush of the pandemic. Now comes the hard part: hosting a global gabfest, without the toxicity."