Markit wrote
You mean PonziCoin?
If Bitcoin is a Ponzi, then surely we have to add the mighty US Dollar (or any fiat currency) into the conversation. Fiat money, issued and controlled by the banks is the quintessential definition of a pyramid scheme.
Fiat is controlled by a very small group of insiders. Without exception, banks have manipulated the supply and distribution for their own benefit.
There is no transparency to speak of and users have no say in policy.
But back to Bitcoin, I really don't think it is a Ponzi. Bitcoins are essentially a commodity with a fixed rate of issuance. It is not a ponzi because after you've acquired bitcoins, there is no promise extended that you can redeem them for any value and there are no dividends paid to those who hold bitcoins. Bitcoins are traded, so the exchange rate can rise or fall, so there are those who will buy or sell bitcoins to speculate on the price.