These days, I've been seeing more interpretations of "ETF capital flow = coin price rise and fall," which is starting to wear me out... Frankly, linking US stock risk appetite directly to crypto is easy to do, but it also risks tying your emotions to it, making your hands even quicker. But on-chain, the real danger isn't the direction; it's the speed at which you chase that moment.

Sandwich trading is very straightforward: you think you're seeing a spread or an "opportunity," but in reality, someone else might already be in line, eating a bite before or after you. The slippage you pay plus gas fees are their profit. Arbitrage works the same way—being a little late isn't without opportunity; it might actually mean you avoid becoming fuel. Now, I prefer to slow down: placing orders, splitting orders, giving myself a buffer to "look at the mempool/quotes again," and not chasing deals that seem too smooth. Running fast is indeed exciting, but falling once can be quite painful. That's all for now.