How can an on-chain swap get “sandwiched”? A lot of people can’t explain it!
Since Ethereum switched to proof of stake, many blocks have been handed to professional builders for assembly via MEV-Boost, with validators choosing the highest-bidding block.
On-chain transactions are generally publicly visible before they’re bundled into a block. Whoever can determine the order of transactions has an opportunity to profit from it.
Markets are full of surprises, so think ahead about what to do if your analysis turns out to be wrong.
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