Comment on Maybe Blockchain Really Does Have Magical PowersparentComments−semi-extrinsic10ySo you're saying blockchains prevent this because proof-of-work? I.e. that you literally can't run a Sybil attack, because the only way to impersonate N miners is to actually run N miners?−wmf10yYes. (Modulo arguments about the definition of "blockchain".)
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So you're saying blockchains prevent this because proof-of-work? I.e. that you literally can't run a Sybil attack, because the only way to impersonate N miners is to actually run N miners?
Yes. (Modulo arguments about the definition of "blockchain".)