Chris Stokel-Walker writes: “Almost from the time the first tweet was posted in 2006, Twitter has played an important role in world events. The platform has been used to record everything from the Arab Spring to the ongoing war in Ukraine. It’s also captured our public conversations for years. But experts are worried that if Elon Musk tanks the company, these rich seams of media and conversation could be lost forever. Given his admission to employees in a November 10 call that Twitter could face bankruptcy, it’s a real and present risk.”