It seems like the only thing that Silicon Valley has been able to talk about in recent years is how glorious the future of humanity is going to be, thanks to artificial intelligence. Personalized education, a doctor-slash-therapist that’s available 24/7, cures for all diseases, and the elimination of poverty—virtually anything we could possibly desire will be just a few prompts away. But there’s been a distinct vibe shift over the past two weeks. Suddenly,