Vitalik Buterin emphasized four key principles for a truly scalable Layer-1 blockchain.Systems need to be tested under worst-case conditions to ensure real-time performance and scalability.Current progress lacks formal verification and needs improvement in proving efficiency.Buterin suggests scaling L1 gas limits by 10-100x to achieve real scalability without compromising decentralization or security.Buterin praised recent advancements but mentioned there are still steps needed for the final destination of a scalable decentralized future.