Clearly currencies don't pay dividends but doesn't matter for this argument. There's a fair chunk of people treating stocks exactly the way gp described. To conclude from that that all stocks are a ponzi is as retarded as it is to conclude all crypto is a ponzi
Yet we didn't conclude only from this all crypto is a ponzi.
That all crypto is a scam clearly comes from the fact it is a negative sum game. When you have a game where you can tell which set of players in total are going to lose and which set of players in total are going to win without knowing the rules of the game -- that's clearly a scam. All you need here is any commodity with baked in transaction fees. The exact same would be true if you traded with plastic poker chips but you needed to pay someone a fee whenever you bought or sold one. Indeed, reviewing the process with such chips makes it more clear, stripped of high tech mumbo jumbo.
Stolfi argues all crypto is a Ponzi because 1) people invest into it because they expect good profits, and 2) that expectation is sustained by such profits being paid to those who choose to cash out. However, 3) there is no external source of revenue for those payoffs. Instead, 4) the payoffs come entirely from new investment money, 5) while the operators take away a portion of this money. Our argument in the previous section was 3-5, you need to add 1 and 2 for it to become a Ponzi. https://ic.unicamp.br/~stolfi/bitcoin/2020-12-31-bitcoin-pon...
Is crypto not a ponzi as an investment, though? Who in their right mind buys currency and sits on it as an investment? If it has utility as a currency, then use it as one, otherwise it is just speculative, and a speculative investment which relies on other people to buy out your stake and has no positive cash flow is a ponzi. No?
