I think that they're actually talking right at each other, but Zuckerberg is thinking of the possibilities, while Musk is thinking of the implementations. "AI

I think that they're actually talking right at each other, but Zuckerberg is thinking of the possibilities, while Musk is thinking of the implementations. "AI is the future" really means that Zuckerberg sees the massive potential of automation, and how it's going to change the face of the world. "We should be worried about AI" really means that Musk has had to think long and hard about the fact that the software written by Tesla is navigating living human beings around obstacles at high speeds. This isn't about some accidental super intelligence that becomes self-aware and murders all humans, it's about the consequences of applying today's standards of "let's ship this code" to technology that we're expected to entrust with our lives. This is two things, combined: "AI" means that code will have more complex emergent behavior that's harder to debug than current code, which is already nearly impossible to completely debug. "AI" also means that this code will run very complex systems that often have powerful hardware components, unfortunately including weapons. To put it another way: Both men agree that the code of the near future is going to make a massive leap in effectiveness and real-world applications. But Musk has to grapple with being held morally accountable for that code, while the only thing Zuckerberg's ever had to care about is performance. Say "AI" to Mark Zuckerberg and he sees all of the money in smarter data mining and fun home appliances. Say "AI" to Elon Musk and he has nightmares of deploying a wireless update that causes Teslas to confuse people wearing green clothing with green traffic lights.