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以太坊合并预计在 9 月进行(但我敢打赌,一定会 delay),关于以太坊合并的一些基本概念,可能大家不是很了解,正好 bankless 有一篇详细讲解的内容,我这里简单翻译下,帮助大家了解为什么社区如此关注合并?合并对 ETH 价格以后什么影响?合并会降低 Gas 费用吗?等一系列关键问题

什么是以太坊合并?
「合并」是以太坊从使用工作量证明(PoW)更改为权益证明(PoS)时的事件名称,即当前运行的两个独立的区块链(当前运行的 ETH 和信标链)会合并在一起
信标链于 2020 年 12 月 1 日正式启动,它的目的只有一个:做一个权益证明的区块链。但信标链上没有交易,没有代币或任何应用,只是一个空的区块链。也正因为如此,它才可以方便的与当前以太坊进行融合,降低合并的变数
为什么社区如此关注合并?
ETH 市值约为 208B 美金(这还是熊市的价值),是迄今为止区块链领域最大的经济生态系统,而所有这些经济活动的安全性将从基于 PoW 的经济转化为基于 PoS 的经济。如果安全性出错,肯定会带来很多风险。所以社区会特别关注合并的结果
此外,合并还将降低 ETH 的通胀,ETH 每年的发行量从 4.3% 降低到 0.43%,这势必会影响 ETH 的经济模型和价格。同时 EIP1559 的推行,让大部分的交易费用 Burn 掉,当 Gas 费大于 7 gwei 时,ETH 的燃烧率会高于发行率,导致 ETH 的整体供应量减少
合并后因为不需要矿机,以太坊的能源消耗降低了 99.5%。启动 PoS 后,每年运行一个以太坊节点的能源成本约为 2.6MWh,这比整个美国游戏行业的能源消耗少了 1300 倍。以太坊将成为世界上最环保的金融系统(虽然很多人认为这是一个噱头,但作为面向人类未来的技术,我认为不得不考虑能源问题)
为什么Merge如此炒作?
自比特币本身诞生以来,合并被认为是加密历史上最大的事件之一。
考虑到这一点有几个原因:
没有区块链在加密货币的历史上发生过如此重大的变化。区块链不会经常改变其运营中如此重要的部分,也没有像以太坊那样对建立在其之上的庞大而强大的经济做出改变。
ETH 资产今天的市值为 203B 美元,基于网络顶部的价值超过数十亿美元。以太坊是迄今为止加密领域最大、最强大的经济生态系统,所有这些经济活动的安全性将从基于 PoW 的经济转变为基于 PoS 的经济。
出错肯定会带来很多风险,这也是 Merge 花了这么长时间的主要原因之一。
有很多很多很多的测试和完善
合并会降低 Gas 费吗?
很多人会以为以太坊转 PoS 后,Gas 费降低了。其实不然,这是一种误解。因为以太坊合并改变的只是共识机制,虽然分片会降低以太坊在 Layer1 上的 Gas 费,但真正的的解决方案从来不在 Layer1 上,而是会发生在 Layer2 上
合并会提高以太坊的交易速度吗?
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