比特币价值托底在于铸币成本，也就是矿工挖矿成本，pow模式使的每一枚代币的产生都耗费一定的成本。而权益证明也就是POS，首先是中心化的产出会将一部分把eth作为投资或理财的机构拒之门外，几乎无成本的产出方式也会让持有者担心出现键盘产出无限量的担忧。山寨头子终于回归本性了

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