Mark Zuckerberg Secret Doomsday Bunker

Priscilla Chan, co-founder and co-CEO of the Chan Zuckerberg Initiative, plan to build a 5,000-square-foot underground shelter on their Hawaii ranch with its own energy and food supplies, according to a Wired investigation published earlier this month.
The plan is that the shelter’s door will be made of metal and filled in with concrete—common in bunkers and bomb shelters, the news outlet reported in its extensive article citing planning documents and interviews.