Mark Zuckerberg has been quietly developing Koolau Ranch on Kauai, which includes a shelter stocked with food and energy supplies. Despite the secrecy surrounding the project, the speculation continues, especially given Zuckerberg’s purchase of multiple properties in Palo Alto, California, rumored to contain an underground bunker.

His fellow tech moguls, including Reid Hoffman of LinkedIn, have also turned to securing havens, with Hoffman referring to it as 'apocalypse insurance.' This raises questions: Could these billionaires be preparing for climate-related disasters, wars, or some unknown catastrophe?

As AI technology advances at a furious pace, some, like Ilya Sutskever of OpenAI, are openly worried about the ramifications it may bring. Sutskever even suggested that a shelter for AI scientists may be wise before releasing powerful new technologies. Such worries indicate a growing anxiety among those developing these technologies.

While predictions about Artificial General Intelligence (AGI) vary, some industry leaders believe we may be on the brink of major breakthroughs within the next few years. This makes the contemplation of doomsday preparations even more relevant.

Amid these discussions, skeptical voices like Neil Lawrence from Cambridge University express that the current debate around AGI might be exaggerated. Lawrence emphasizes that the real advancements in AI have already transformed our interaction with technology in fascinating ways.

Despite the debate on AGI's potential, there's no denying that tech billionaires are taking precautions, and it prompts the question: are they merely being cautious, or is there more they know that we don't?