Summary:
- OpenAI co-founder Sam Altman wanted to build a doomsday bunker to protect himself and his family from the "rapture" - a belief that some people will be taken to heaven before the end of the world.
- Altman was concerned about the potential risks of advanced artificial intelligence (AI) technology and wanted to be prepared for a catastrophic event.
- The article highlights the growing concerns among tech leaders about the potential dangers of AI and the need to plan for the future.