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微軟昨日（28日）宣佈通訊軟件Skype將於5月5日起停止服務，結束21年歷史。Skype容許用戶透過互聯網打電話和視像通話，2011年被微軟收購，其後與當年的Windows Live Messenger（MSN）整合，最終也步MSN後塵遭微軟結束營運。微軟表示人類的溝通方式已顯著改變，有意精簡通訊服務，使用Skype作「烽煙」渠道的本地網台JFFT表示「真係要轉場了」。
微軟昨日（28日）宣佈通訊軟件Skype將於5月5日起停止服務，結束21年歷史。Skype容許用戶透過互聯網打電話和視像通話，2011年被微軟收購，其後與當年的Windows Live Messenger（MSN）整合，最終也步MSN後塵遭微軟結束營運。微軟表示人類的溝通方式已顯著改變，有意精簡通訊服務，使用Skype作「烽煙」渠道的本地網台JFFT表示「真係要轉場了」。
“To the extent it is used I fear it’s often for illicit finance. It’s an extremely inefficient way of conducting transactions, and the amount of energy that’s consumed in processing those transactions is staggering,” the former Fed chairwoman said. Yellen’s comments have been cited as a reason for bitcoin’s recent losses. However, Yellen’s assessment of bitcoin as a inefficient medium of exchange is an important point and one that has already been raised in the past by bitcoin bulls. Using a volatile asset in exchange for goods and services makes little sense if the asset can tumble 10% in a day, or surge 80% over the course of a two months as bitcoin has done in 2021, critics argue. To put a finer point on it, over the past 12 months bitcoin has registered 8 corrections, defined as a decline from a recent peak of at least 10% but not more than 20%, and two bear markets, which are defined as falls of 20% or more, according to Dow Jones Market Data.
What Is Bitcoin?
Bitcoin is a decentralized digital currency that you can buy, sell and exchange directly, without an intermediary like a bank. Bitcoin’s creator, Satoshi Nakamoto, originally described the need for “an electronic payment system based on cryptographic proof instead of trust.” Each and every Bitcoin transaction that’s ever been made exists on a public ledger accessible to everyone, making transactions hard to reverse and difficult to fake. That’s by design: Core to their decentralized nature, Bitcoins aren’t backed by the government or any issuing institution, and there’s nothing to guarantee their value besides the proof baked in the heart of the system. “The reason why it’s worth money is simply because we, as people, decided it has value—same as gold,” says Anton Mozgovoy, co-founder & CEO of digital financial service company Holyheld.
