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Bitcoin is one of the world's most popular digital currencies, meaning that it is exclusively created and held electronically. But, what do we actually know about digital currencies and the potential of these currencies to replace conventional money?
Like conventional money, the major function of a digital currency is to serve as a means of payment, whether that is in exchange for goods or real currency, such as dollars and euros. In addition, similar to how a normal currency's exchange rate is set, the price for bitcoins - per the CoinDesk Bitcoin Price Index (XBP) - is based on market dynamics and expressed as the midpoint of the bid/ask spread. Bitcoin’s current value against the US dollar is of $8,165. The highest price for bitcoin since it was launched in 2009 was $19,497 in December 2017. After that spike, the price trended down to $6,603 in April 2018. Bitcoin's price is gradually rebounding, buoyed by increased demand for the digital currency in China caused by the weakening yuan: digital currency, like gold, is a refuge for investors in the periods of uncertainty.
While the flow of a traditional currency is tracked by banks and controlled by governments, the circulation of digital currencies is decentralized, a key factor that drives expectations for the spread of bitcoin to new markets and transaction types. Even though traditional currencies now exist primarily on digital ledgers of banks like bitcoins, the ledger for bitcoins has no separate owner or regulator. Instead, bitcoin is maintained and updated by bitcoin users on the basis of the bitcoin protocol. Since the bitcoin network is not controlled by a single institution, it has several advantages over government-controlled currencies. These advantages include:
The anonymous nature of bitcoin, a byproduct of its decentralization, makes it a perfect tool for illegal activity. Examples include:
The taint of bitcoin and other virtual currencies by criminals' use of the currencies in illicit transactions coupled with the anonymity inherent to virtual currency fuels skepticism that virtual currency will achieve the level of acceptance of traditional currency much less replace it. Without meeting the essential prerequisite of trust in a currency, the widespread expansion remains doubtful.