Tonight, I saw that kind of "coincidental transfer" on the blockchain again: A just received money, and within a few minutes, it sends the same amount to B, then B goes to a certain contract... At first glance, it looks like internal wash trading, but once you break down the path, it's not that mysterious. First, categorize the source of funds by entry point (hot wallets on exchanges, cross-chain bridges, L2 deposits and withdrawals, old wallets accumulated), then see if there's an aggregator/batcher in the middle—many "same amounts" are just routed through the simplest splitting method. Recently, L2s have been arguing over TPS, fees, and subsidies, which has made me a bit fatigued, but from the transfer paths, it's actually quite straightforward: the chain with the biggest subsidies is more like a "transit station," where money comes in, circles around, and then goes out, and the liquidity behind the floor price also fluctuates accordingly. For now, that's it. Once I connect those addresses, I'll post the link.