[spiralx]

The article is saying that the inherited wealth of the remaining 20% of today's billionaires is greater than the wealth of those new-made billionaires, there's no contradiction there at all. And obviously you'd expect most new billionaires to have a net wealth close to the $1bn mark, so all it would take is each of the 20% to inherit four times as much on average.

This page lists nine people who inherited over $50bn each, and another 23 who inherited between $4bn and $50bn, totalling just over $1.1tn of inherited wealth. Easy to see how that would outweigh the wealth of a larger number of new billionaires.

https://www.madisontrust.com/information-center/visualizatio...

And that list doesn't include any of the inherited wealth of the various royal, noble and other old money families around the world...