Grandpa Had a Pension. This Generation Has Cryptocurrency. Most readers have probably heard of Bitcoin, the digital coin that dominates the cryptocurrency market. It has gained notice both because of its skyrocketing value (from less than a cent in early 2010 to around $2,600 currently) and because it is frequently a key player in hacking- and black-market-related stories, from the looting of nearly half a billion dollars in coins from the Mt. Gox exchange in 2014 to the recent demand…