According to Wu, the Placeholder team published an article analyzing the decentralization and sustainability challenges of the Solana blockchain network's validator set. Solana is currently facing an issue of staking concentration, with the majority of staking power concentrated in a few nodes. This stems from the positive feedback loop of the stake-weighted reward mechanism, and inflation rewards further exacerbate this imbalance. To address this, the article suggests optimizing several mechanisms within the Solana core protocol.