A cry for help is coming from the billionaires building the artificial intelligence machinery that threatens to upend — if not end — the world: Save us from ourselves before it is too late!Dario Amodei, the head of Anthropic, the company behind the Claude chatbot, posted a 3,800-word essay over the weekend that called for a global slowdown in the development of AI because the risk to humanity outpaced the benefits. Other leading Big Tech masters of the universe offered half-hearted endorsements for a slowdown, including SpaceX’s Elon Musk, OpenAI’s Sam Altman, and Google DeepMind’s Demis Hassabis. Amodei’s plea came just days after…