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为什么我就是对SW喜欢不上——有能100%解决问题的方案就不要妥协
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为什么我就是对SW喜欢不上——有能100%解决问题的方案就不要妥协
May 10, 2017, 01:04:21 PM
#1
第0章 引言
熬夜看完罗永浩的坚果Pro手机录播,被老罗的关于“意念胶囊”的演讲震惊了。这是一个关于解决问题到什么程度的极致思考。
第1章 100%解决问题和95%
语音输入法的准确率已经高达95%以上,但为什么这却是一个使用率极低的功能呢?
老罗的回答是,因为没有做到100%。
我们绝大多数人无法忍受一句话里有几个错别字,或者标点符号点的不对,也让我们烦恼。除非给用户提供一个能够百分之百解决问题的方案,否则就可能会用户认定为是垃圾。
老罗的意念胶囊就是想让用户使用手机来收录制作to-do-list,使用语音输入法,并且成为用户真正百分之百解决的方案。
语音输入法原本需要云端服务器,很多地方网络不好怎么办?老罗就将使用本地识别技术。但准确率只能到92%。怎么办?
老罗说,没关系,你先用着,错别字您也不用改,只要您存好了,后台程序会自己联网,到云端服务器,给您改好了。准确率可以达到97%。
好,剩下3%怎么办?没办法了吗?没关系,系统会自动备份一段语音,以方便让用户彻底告诉回头不认识的烦恼。
当然演讲还讲了很多细节,有兴趣的可以去看录像。
我是一个to-do-list任务列表的重度依赖者,我被老罗的解决方案打动了。
第2章 隔离见证没有100%它计划解决的问题
隔离见证没有100%解决比特币网络的交易延展性。
隔离见证是通过新定义两种新的交易格式,P2WPKH和P2WSH来消除交易延展性。
但比特币网络还存在P2PKH和P2SH这两种交易,这并没有消除交易延展性。对于延展性攻击者来说,还是能找到攻击目标。
隔离见证没有100%解决比特币网络的签名验证成本呈平方增长。
和上面相同的道理,只有P2WPKH和P2WSH两种交易格式修改成了签名验证成本呈线性增长。另外两种没依然如此。攻击者依然能找到攻击目标。
隔离见证没有有效解决区块容量问题。
我这篇文章里详细说了这个问题:《隔离见证有效达成链上扩容效果的阻力》。
哪怕是隔离见证最后的底线,软分叉,本质上都只是一个部分向后兼容的软分叉。因为隔离见证只对3字开头的地址兼容,1字开头的地址不用使用隔离见证交易格式。
而我们明明有更好,更简洁的,更彻底的解决方案,为什么不用呢?真是奇怪了。
第3章 结束语
Core的设计哲学很奇怪。
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Re: 为什么我就是对SW喜欢不上——有能100%解决问题的方案就不要妥协
May 11, 2017, 12:15:14 PM
#2
又是喷子,都是站在各自的利益面前讲对方批得一无是处,但是不管怎么批,结果还是没有得到统一方案
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