Today I spent half a day stuck on a blockchain operation, and it reminded me that mempool is basically a "transaction queue hall." When there's congestion, your transaction isn't immediately added to the chain; instead, it waits there for miners/validators to pick it up. If the fee isn't high enough, it can be front-run, or you might forget it's still waiting... Even more ridiculous, sometimes you don't get a successful transaction; the price or status changes, causing it to fail, but you still pay a fee. It's pretty annoying.

Recently, everyone has been watching staking unlocks and token unlock calendars, feeling anxious about lock-up pressures. I also worry about that, but now I prefer to think in terms of "probability": congestion = higher chance of stuck transactions, higher slippage, and failure; market volatility = higher chance that your transaction hits the most painful few minutes. Anyway, I’m just a bored player who doesn’t chase hot topics. If I can do it early, I do; if I really need to act, I just pay enough fee, or wait until the network isn't congested... just endure slowly.