You can tell that he doesn’t really think too deeply about any of this, because the way he wants to illustrate the point is by typing the numbers into a calculator.
It’s as if the money comes right up out of thin air, isn’t it?
He inadvertently gets close when he talks about Facebook being about people doing stalking. PG, is stalking a good thing or a bad thing, hmmm?
There’s no conservation rule for an asset’s value. Market cap comes mostly out of thin air because people believe a company is valuable. If they change their minds, it disappears.
(Market cap is estimated based on transactions that are a small percentage of market cap.)