These days, with block builders and bundles, it feels like retail investors don't really need to memorize the entire auction mechanism... My current understanding of what’s "sufficient" is: when you click confirm, the transaction may not be included in the block in the order you expect; some people bundle a series of transactions together (bundle), so the slippage, front-running, and prices that seem to move without action are mostly related to this system.

The practical approach is quite simple: don't rush in when liquidity is thin, use private or anti-front-running entry points (if your wallet/router supports it), break large transactions into smaller parts, and don't widen your tolerance just to save two gas units. Recently, many new L1/L2 chains are offering incentives to attract TVL, and I understand the complaints from old users about "mining, arbitrage, and selling"... In such times, the chain gets more congested, the order flow gets messier, and newcomers are more likely to be targeted as "easy prey."

What I’ve learned isn’t tricks, but rather: accept that transactions aren’t always "fair and straightforward," and then keep your expectations and actions more conservative.