>>507743700
This is very true.

Also, Krakatoa released more energy than roughly 1/3 of the combined nuclear arsenal of the world’s major powers. There was a mild nuclear winter, and a couple of short famines.

Billionaires probably don’t know the technical details of a hypothetical limited nuclear exchange of airburst ordinances, BUT they also probably just have the correct instincts about scale. I imagine that understanding scale correctly is a pre-requisite for being a billionaire.

TLDR: Why would they care?