Jump Crypto's Firedancer team is building a high-performance client for Solana. Their SIMD-0370 proposal proposes removing the current fixed limit of 60 million CUs per block (a previous proposal would have raised this limit to 100 million) following Solana's major Alpenglow upgrade, scheduled for testing later this year. Without a fixed limit, block size would adjust based on the transaction volume accommodated by high-performing validators, while weaker validators would automatically abstain from voting on oversized blocks by skipping the voting mechanism. The proposal argues that removing the limit would encourage well-funded block producers to upgrade their hardware and allow more transactions to increase revenue, incentivizing others to follow suit, creating a "flywheel effect" and increasing the average capacity of validator clients. Roger Wattenhofer, Head of Research at Anza and a driving force behind Solana's Alpenglow upgrade, supports removing the limit but expresses concerns about potential centralization and network stability risks. He argues that these issues are solvable and that he remains a staunch supporter of removing the limit. (The Block)