It seems perfectly reasonable to me to spend a tiny fraction of your fortune on building a bunker to gain an advantage against highly unlikely events. Think a c

It seems perfectly reasonable to me to spend a tiny fraction of your fortune on building a bunker to gain an advantage against highly unlikely events. Think a civilisation collapse has a 1 in 1000 chance to happen? Spend 0.1% of your fortune building that bunker. Building your life around _near-term_ apocalyptic scenarios doesn't seem super healthy to me, but it is vastly different from being part of a cult or believing in Santa Claus, as there is indeed some science behind it, although people living that way may imagine those catastrophic events more probable or severe than they really would be.