Where does a transaction wait after being broadcast and before it’s added to the blockchain? Many people can’t explain it clearly!
There isn’t one unified transaction pool across the entire network. Each node maintains its own pool according to its own rules, so the contents may not be exactly the same.
Block space is limited, and miners usually prioritize transactions with higher fee rates. So when the network is congested, transactions with lower bids have to wait longer in the queue.
Every kind of return comes with corresponding risks. Think about the worst-case scenario first.
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