Lin, Connie (2022年1月21日). “How to clean up crypto mining—and what's at stake if we don't” (英語). Fast Company. 2022年1月29日閲覧。 “Contrary to the spirit of DeFi, [proof-of-stake] tends toward centralization in that, theoretically, one entity—or person—flush with cryptocurrency, could single-handedly shape the blockchain.”