ChainCatcher reported that Vitalik responded to Twitter user nikete, stating that although the Ethereum network plans to increase the Gas limit and the cost of inefficient operations, the actual selection of transactions in a block is still entirely determined by market mechanisms—"not like what Bitcoin does." He emphasized that the total block Gas amount is set by validator voting, and many validators will refer to core developers' recommendations, but ultimately, transaction selection is still decided by the free market.
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