Vitalik Revisits the Concept of 'Synthetic Stablecoins': Anchoring Personalized Consumer Index and Predicting Markets, Replacing the US Dollar According to Foresight News, Vitalik Buterin, co-founder of Ethereum, has posted an article re sharing his previously proposed new concept of "synthetic stablecoins" and exploring the fundamental issues of stablecoin anchoring objects. \Vitalik stated in the article: If a synthetic stablecoin is built, its value should remain stable relative to what? He believes that the US dollar is not the best choice, and if the cryptocurrency ecosystem relies on stablecoins supported by the US dollar for a long time, true decentralization cannot be achieved. He further proposed a solution that does not require fiat currency: establishing price indices and forecasting markets for each major category of goods and services, and using LLMs deployed locally by each user to generate personalized forecasting market share combinations based on their personal spending structure, as a stabilization tool for their "expected spending for the next N days". Under this framework, users can accumulate wealth by holding assets such as ETH or stocks, and turn to personalized prediction of market share when value stability is needed, thus completely abandoning the concept of currency itself.