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The technology likely to have the greatest impact on the next few decades has arrived.
有可能在未來幾十年帶來巨大影響的科技，已經到來了。
And it's not social media. It's not big data.
并不是社交媒體，也不是大數據，
It's not robotics. It's not even AI.
也不是機器人科學，甚至也不是人工智能。
You'll be surprised to learn that it's the underlying technology of digital currencies like Bitcoin.
你會驚訝地了解到，它是比特幣等數字貨幣的技術基礎，
It's called the blockchain. Blockchain.
它叫做區塊鏈。
Now, it's not the most sonorous word in the world,
它不是世界上最華麗的詞匯，
but I believe that this is now the next generation of the internet,
但是我堅信，它將是下一代互聯網，
and that it holds vast promise for every business, every society and for all of you, individually.
并且給每一次貿易，每一個社會，每一個人帶來光明前景。
You know, for the past few decades, we've had the internet of information.
過去的幾十年里，我們迎來了互聯網的信息時代。
And when I send you an email or a PowerPoint file or something,
當我向你發送一封電子郵件或一份PPT文件或者其他的時候，
I'm actually not sending you the original, I'm sending you a copy.
實際上我發送的并不是原始文件，我發送的是拷貝的副本。
And that's great. This is democratized information.
那可真棒。這是民主化的信息時代。
But when it comes to assets -- things like money,
但是如果牽涉到資產的話，比如說金錢，
financial assets like stocks and bonds, loyalty points, intellectual property,
股票及債權等金融資產，股份，知識產權，
music, art, a vote, carbon credit and other assets -- sending you a copy is a really bad idea.
音樂，藝術，一張選票，碳信用額等其他資產，發送一份副本真是個糟糕主意。
If I send you 100 dollars,
如果我給了你100美元，
it's really important that I don't still have the money -- and that I can't send it to you.
我不再擁有這筆錢是很重要的。并且我不能再次發送。
This has been called the "double-spend" problem by cryptographers for a long time.
這已經被密碼專家叫做“二次消費”問題很久了。
