BlockDemon chief engineer Nai Lu discusses infrastructure challenges across 50+ blockchain protocols, including Stellar's federated consensus model, validator decentralization, and how reputation-based trust differs from proof-of-work and proof-of-stake incentive structures.
Nai Lu, chief engineer at BlockDemon, discusses the operational and strategic challenges of supporting 50+ blockchain protocols, with emphasis on Stellar's unique federated consensus model. Key topics include: growing ledger density and transaction complexity creating scaling challenges; the need to support diverse user categories (transaction submission, event streams, historical data queries, and oracle data mining); Stellar's non-incentive validator model and how it attracts mission-driven participants rather than profit-seekers; the tension between validator decentralization and service provider centralization; quorum set customization risks and the need for protocol-level support; and how crypto winter is attracting more technically sophisticated, long-term focused customers. Lu emphasizes that Stellar's reputation-based trust model offers advantages over purely market-driven consensus mechanisms, though customer education about federated consensus remains challenging.
