Turns $4K into $311K in 0.07s

- A Chinese quant's cross‑chain AI arbitrage bot reportedly turned $4,000 into $311,000 by executing trades in roughly 0.07 seconds through dark‑pool routes. - The writeup claimed a 7,775% ROI, sub‑100ms latencies, automated order placement, and engineered cross‑chain settlement to capture tiny price dislocations repeatedly. - The examples show retail access to sophisticated arbitrage but also highlight execution, slippage, and legal risks. (x.com)