oh look. Some techbro billionaire fretting about his billions. Why is this news? What's next, an indepth look at finding 'just the right bunker' for the apocalypse. I mean, yeah a bad thing happened. His family survived, and he's gotten a better life than 99% of the population on the planet. Cool. Maybe rather than worry about hoarding his stuff he could find ways to improve the planet? Or better yet, collect some digital thing, obfuscated behind other digital things all with some arbitrary value - that won't feed you, keep you warm and or provide clean water in a real emergency.