When an asset rises by almost 30% in a few weeks, it tends to attract attention. Recently, that asset was bitcoin (BTC). The price of BTC in dollars rose from $454 on May 23 to $590 on June 6th.
When an asset doubles in a matter of months, it tends to attract attention. The cryptocurrency Ether (part of the Ethereum platform) doubled from around $7 in April to roughly $14 in early June.
Are these cryptocurrencies mere fads? Or are they potentially game-changing alternatives to the conventional currencies such as the U.S. dollar, Chinese RMB, Japanese yen or European Union euro?