Earlier quoted context omitted.
Isn't that the case for pretty much all exchanges? How is that different than in the stock market?
The stock market has other mechanism of value creation, one of them that the company distributes dividends which is money outside the stock market. Companies also use it to fund themselves to grow. It is not a zero sum game. Crypto currency is a zero sum game and i think this is what OP was implyining.
I'm not sure I would describe high-flying tech stocks with no dividends, trading at 30-70 times earnings as much different. How many investors are really snapping up these stocks because they're sold on the 30+ year value proposition?