From "Math Theorem" to "Engineering Challenge" Historically, it was believed that a blockchain could only achieve two of three attributes: Decentralization, Security, and Scalability. Vitalik's latest view flips this script. He argues that the Trilemma is not an absolute limit but a phased engineering hurdle. By decoupling Data Availability from Execution and introducing novel verification mechanisms, Ethereum is proving that it is possible to scale throughput without centralizing the network or compromising security.