Just now, I sent a blockchain transaction that got stuck in the mempool waiting in line, staring at it for a long time without moving, feeling like at a congested intersection with the turn signal on but no one letting you go. To put it simply, at the moment you sign, you’re just throwing your “intention” into the waiting room; miners/block producers pick the transactions with higher fees or more profitable to themselves and include them in the block first, while the rest slowly wait, or even get cut in line by others (small games like different paths for the same transaction can be quite annoying). At this point, what you can do is actually very limited: either pay more to replace it, wait for it to expire/discard, or simply cancel and restart. No wonder recently the “yield stacking” of staking and shared security models has been criticized as a layered trap — the underlying layer is blocked, and the promise of “instant access and use” on top seems a bit hollow. I still prefer to take it slow, confirm first before moving to the next step.