My OCD wonders if they factored in having to assassinate the heirs of the CEOs who immediately become billionaires, recursively until every fortune has been divvied up so many ways nobody has a billion anymore. Cuz that would be necessary if you really want to “run out” of billionaires, and would also mean you advocate executing children for inheriting a lot of money. This does require thinking beyond the simple meme, but go ahead - you can do it!