Elon Musk's xAI has lost its second co-founder in two days. Influential researcher Jimmy Ba on Tuesday announced his departure in a post on X, thanking Musk and writing that he was, "Grateful to have helped cofound at the start." Ba's departure comes just one day after fellow co-founder Tony Wu announced his own exit from xAI, which merged with Musk's aerospace company SpaceX earlier this month. The xAI co-founder exodus comes as SpaceX prepares to go public sometime this year. A University of