And I'm Sam. Now Sam, what can you tell us about 'cryptocurrencies'? The word is a combination结合 of 'crypto' from 'cryptography', which is to do with using clever software codes to protect computer information and systems体系, and 'currency货币', which is the money of a particular country. So 'cryptocurrency' very simply means 'code money'. We usually think of money as notes and coins, which come from a country's bank. But a cryptocurrency doesn't have physical money, it's purely纯粹地 digital数字的 and is not controlled by banks or governments, but by the people who have it, and very complex复杂的 computer codes.
Perhaps the most well-known is Bitcoin. Well, you seem to know a fair bit about 'cryptocurrency' actually实际上. Anyway, now a new player is joining the digital数字的 money system体系 as Facebook have announced they are launching their own digital数字的 currency货币. They're calling it Libra, and we'll be finding a little bit more about this topic in the programme.
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