So, it's happening: Slot time is going lower. But what that means? - Reducing slot time from 400 to 200 ms halves the four-slot leader window from 1.6 s to 800 ms, limiting how long a single execution regime can persist - Shorter slots reduce modeled stale-price arbitrage against external reference markets, with the effect increasing for wider fee bands and lower short-horizon volatility. Current snapshot of arbitrage indicates intensive on-chain routing; arbitrage will likely remain unchanged after slot time reduction - Sandwich MEV is not sign-definite: shorter reaction windows reduce attack feasibility, while lower intra-slot contention can leave more residual slippage available to fast attackers - More frequent leader opportunities reduce validator block-reward variance, with a larger reduction in downside uncertainty than in the long-tail upside - At 200 ms, validators vote roughly twice as often per unit of wall-clock time; expected vote-fee recapture thresholds remain similar, but smaller validators face larger absolute voting costs - Current vote timing and leader-handoff distributions leave limited latency headroom at 200 ms, so the impact on TVCs and consensus performance remains an empirical mainnet question Below the relevant charts. Read the full report at