If you’re an investor with a high tolerance for risk, you likely have invested in one or more digital currencies, i.e., cryptocurrencies, in the past decade or so. Bitcoin, the granddaddy of them all, only appeared in 2008. Today, however, you have over 6,700 different publicly traded cryptocurrencies to choose from. Their total value, as of Feb 18, 2021, was more than $1.6 trillion. On that date, Bitcoin alone was worth over $969.6 billion.