[stompin]

> "One proposed method of stopping incidents like the Knightmare, and generally to limit HFT from wading too far into ethically grey areas, is by leveraging blockchain tech. For example, front-running—sneaking in trades a few microseconds early based on advance knowledge of pending changes to the market—could be stymied if the market adopted a slightly slower, transactional, blockchain-style ledger."

Adding another layer does not stymie anything - it might add latency but this will be exploited by those with the most resources resulting in [additional] advantages (e.g. on top of the microwave network advantage, a race to write to the blockchain).