I. The Achilles' Heel of Blockchain: The Decade-Long Dilemma of the Trilemma Blockchain technology, after more than a decade of development, has seen countless projects stumble in the maze of the "impossible trilemma." This theory posits that no blockchain system can simultaneously maximize the three key characteristics of decentralization, security, and scalability. Bitcoin chose decentralization and security but sacrificed scalability, with a transaction rate of only 7 transactions per seco...