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以太坊合并后 将给加密行业带来哪些重大变化？
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作者：传DAO士
原文：《以太坊「合并」会影响哪些领域？有哪些机会？》 没有好问题，就没有好答案： 为什么以太坊这次升级被看成是区块链世界的第三次革命？ 这次升级真的能让gas费大幅下降吗？ 为什么升级后能减少99.95% 的能源消耗？ 如果升级造成通货紧缩，对以太坊网络应用是好事吗？ 毫无疑问，以太坊「合并」是整个加密行业在2022年的头号事件。 提到 Web3，就不得不提公链之王——以太坊。2008年比特币诞生带来了区块链技术；2013年以太坊把区块链与智能合约紧密结合，让区块链上能开发出各种区块链应用，促进了大量新的应用产生，也形成了Web3 应用的生态系统。 虽然拥有全球最大的开发者社群，DAPP数量也最多。但它的使用体验却并不好。现在PoW算法的以太坊区块链大约每15秒会打包一个区块，每个区块里会包含150-300笔交易，换算下来的一秒钟也就只能处理10-20笔交易。 这要是开发一个抢红包的 Web3 应用，跟微信相比，微信上的群友们都抢完并发完【谢谢老板】了，而Web3 的抢红包界面却还在转圈圈呢，这不能忍！ 而且，这样的以太坊网络经常会有网络拥堵的情况发生。这时，如果你想要更快达成交易，那就得多交手续费（gas），高峰时甚至可以要花掉数百美元的手续费。 由于这些原因，现在以太坊的处理速度连普通的商业应用都撑不起来，更别提要做成“世界计算机”了。 为了实现世界计算机的目标，以太坊在2014年诞生之初，就设定了4个发展阶段：分别是Frontier (前沿)、Homestead (家园)、Metropolis (大都会)、Serenity (宁静)。 现在前三个阶段都已经完成，第四个阶段Serenity (宁静)是以太坊的最终形态，也就是以太坊2.0。它最大的变化是要引入分片、信标链，并会将 PoW 挖矿转成 PoS 挖矿。 作为加密生态应用的龙头，以太坊以 1204.3亿 $TVL占到了所有应用型公链TVL的半壁江山，对于以太坊这艘巨轮来说，每一个细微改变都可能影响链上成千上万的应用以及数百万的普通用户，就像是要换掉在大海航行的底层船舱和发动机，不仅难度大，牵涉面也很广，这也是以太坊整个分片升级一再推迟的原因，如果此次合并顺利进行，将为分片时代的顺利到来奠定最坚实的基础。 
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