"Cryptocurrencies are a typical bubble, which is always based on some kind of misunderstanding. Bitcoin is not a currency, because a currency is supposed to be a stable store of value, and the currency that can fluctuate 25 percent in day cannot be used, for instance, to pay wages, because wages could drop by 25 percent in a day. So it's a speculation, it's based on misunderstanding," Soros said in Davos, Switzerland.
The value of bitcoin, a pioneer in the cryptocurrencies market, surged in 2017, jumping up to about $20,000 in December amid debates on its reliability as an investment, but then tumbled below $10,000 last week.
Recently, Venezuela launched its own state cryptocurrency, which, as the country's president Nicolas Maduro says, is backed by oil. Also, the Bank of England could give approval on the introduction of a national cryptocurrency in 2018. The body reportedly established a special research unit years ago, in order to study the issue of introduction of a pound-linked cryptocurrency.