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Danh ngôn của Vitalik Buterin (Sứ mệnh: 2)

Whereas most technologies tend to automate workers on the periphery doing menial tasks, blockchains automate away the center. Instead of putting the taxi driver out of a job, blockchain puts Uber out of a job and lets the taxi drivers work with the customer directly.
The main advantage of blockchain technology is supposed to be that it's more secure, but new technologies are generally hard for people to trust, and this paradox can't really be avoided.
A smart contract is a mechanism involving digital assets and two or more parties, where some or all of the parties put assets in, and assets are automatically redistributed among those parties according to a formula based on certain data that is not known at the time the contract is initiated.
Bitcoin is great as a form of digital money, but its scripting language is too weak for any kind of serious advanced applications to be built on top.
As society becomes more and more complex, cheating will in many ways become progressively easier and easier to do and harder to police or even understand.
The industrial revolution allowed us, for the first time, to start replacing human labour with machines.
I personally like hard forks. Particularly, I like the fact that they give users a measure of control, requiring them to opt in to protocol changes. Sure, they can be a little more chaotic if they're controversial, but that's the price of freedom.