I really like the way Conflux combines POW and a DAG. With that said, I still do wonder how the economics are supposed to work out.
Once multiple blocks are produced at the same time, what is stopping the miner with the greater hash power from just stealing the transactions (and their associated fees) from the side-blocks and moving them onto the larger chain. This sort of economic substructure feels like a leap of faith. Maybe it will work, but Bitcoin does have a single thread of miners and blocks for a reason.
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[ 4.1 ms ] story [ 19.3 ms ] threadOnce multiple blocks are produced at the same time, what is stopping the miner with the greater hash power from just stealing the transactions (and their associated fees) from the side-blocks and moving them onto the larger chain. This sort of economic substructure feels like a leap of faith. Maybe it will work, but Bitcoin does have a single thread of miners and blocks for a reason.