Tech billionaires seem to be doom prepping. Should we all be worried?

[discocrisco01]

Mark Zuckerberg is said to have started work on Koolau Ranch, his sprawling 1,400-acre compound on the Hawaiian island of Kauai, as far back as 2014.

It is set to include a shelter, complete with its own energy and food supplies, though the carpenters and electricians working on the site were banned from talking about it by non-disclosure agreements, according to a report by Wired magazine.

A six-foot wall blocked the project from view of a nearby road.

Asked last year if he was creating a doomsday bunker, the Facebook founder gave a flat "no". The underground space spanning some 5,000 square feet is, he explained, "just like a little shelter, it's like a basement".

https://www.bbc.com/news/articles/cly17834524o