RT: @VitalikButerin Let me try to nuance further. On the one hand, I don't think blockchains are necessary to "solve the double spend problem" and that there are many better approaches we will get to. On the other hand, the idea that the features that allow it to solve that problem are mostly
RT：@VitalikButerin让我试着进一步细化。一方面，我不认为区块链对于“解决双倍支出问题”是必要的，我们会找到很多更好的方法。另一方面，允许it解决该问题的功能主要是