V神:POS安全性是POW的20倍,但比特币转POS将是艰难的
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博链财经BroadChain获悉,9月2日,在接受采访时, 以太坊 创始人 V神 表示,POW不如PoS安全且“不可持续”,用POW同样的成本POS可以获得20倍的安全性。
POW矿工的进入成本和持续参与成本都是中等的,但POS验证者的持续成本较低,进入成本较高。
“事实证明,安全程度只取决于进入成本,因为这是攻击者必须支付的攻击费用”。
此外,V神还谈到了对 比特币 的担忧,主要有两点:
一是比特币的安全性将完全来自于费用,目前每天是30万美元,在过去五年里并没有明显增长;
二是比特币POW安全性较低,但从POW转向POS在政治上似乎是不可行的。
“如果比特币市值达到5万亿美元,但攻击比特币链只需要50亿美元,未来会是什么样子?如果比特币真的受到攻击,我希望转向混合POS的政治意愿可以很快出现,但我估计这将是一个痛苦的过渡。”
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