B) even if he did it would be kind of like saying that your 500k house isnt really worth 500k because if you walked out on to the street and and asked passers by for offers for a maximum of one hour you would almost certainly not get 500k.
The OP said "If Jeff Bezos dumped his entire holding [...]". I find it very hard to equate "dump" with "still over the course of a decade".
> B) even if he did it would be kind of like saying that your 500k house isnt really worth 500k because if you walked out on to the street and and asked passers by for offers for a maximum of one hour you would almost certainly not get 500k.
Now you're exaggerating in the other direction. The point is that if these people whose fortune is entirely stock of a massive company wanted to sell all of that stock for cold hard cash on the stock exchange in the same way you or I might sell our stock for a big purchase, they would actually only get a fraction of the nominal value ascribed to them.
Sure, if they do it slowly over the course of a decade, and if the business avruay survives that long at its current valuation (which Amazon might, but Tesla won't), then they can eventually actually get the fortunes they theoretically own.
B) even if he did it would be kind of like saying that your 500k house isnt really worth 500k because if you walked out on to the street and and asked passers by for offers for a maximum of one hour you would almost certainly not get 500k.