The International Monetary Fund (IMF) just recently posted a picture that shows the evolution of money that people have used since the beginning of human civilization. Will IMF consider Bitcoin as a new currency?

When I think of currency, it's something that everyone has access to and can be used as a medium for trading to goods and services. Currencies also represent valuable things including precious metals like gold and diamonds. I think bitcoins cannot be a currency since it does not represent anything.