Mark Zuckerberg is back on Elon Musk's X after three years, and it is not personal

In 2026, Mark Zuckerberg made a surprising return to Elon Musk's social network X, seizing the opportunity to unveil Meta's latest AI innovation, Muse. By engaging with specific engineering talent and researchers on X, Zuckerberg aims to leverage diverse online communities for fostering discussions, effectively amplifying Meta's AI initiatives in front of potential developers.