Earlier this week, Mark Zuckerberg published a memo outlining his vision to build AI "superintelligence." Citing "safety concerns," he wrote that Meta would need to be "rigorous" about what it open sources and what it doesn't.

In a new open letter, Mark Zuckerberg wrote that he is “extremely optimistic” that super-intelligent AI will play a major role in moving humanity forward. And unlike some other big players in the AI industry,