@21_21_21 say i put one coin in and then ask for it back. that withdrawal needs miners to vote it through over thousands of blocks, and if they just never include it my coin sits there. nothing orphans it, nothing times out. now compare a normal payment to you. if a miner builds a block that leaves you out, the next miner builds on a different block and that one is gone in ten minutes. the block case has an undo. the peg exit does not.