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“According to technologist David Rosenthal, speculation on cryptocurrencies is the engine that drives Web3—that it can’t work without it. “[A] permissionless blockchain requires a cryptocurrency to function, and this cryptocurrency requires speculation to function,” he said in a talk at Stanford in early 2022.4 Basically, he’s describing a pyramid scheme: Blockchains need to give people something in exchange for volunteering computing power, and cryptocurrencies fill that role—but the system works only if other people are willing to buy them believing that they’ll be worth more in the future. Stephen Diehl, a technologist and vocal critic of Web3, floridly dismissed blockchain as “a one-trick pony whose only application is creating censorship-resistant crypto investment schemes, an invention whose negative externalities and capacity for harm vastly outweigh any possible uses.” — Harvard Business Review