Bitcoin (BTC -2.06%) has been on a tear lately, with its value rising rapidly as investors grow increasingly optimistic about cryptocurrencies in general. The recent optimism comes from years of Bitcoin's rising value, which is up 500-fold during the past decade. The astronomical gains Bitcoin has made during the past 10 years have no doubt minted millionaires. If you had invested just $2,000 in Bitcoin a decade ago, you would have nearly $1 million today. So it's reasonable for investors to wonder if Bitcoin can mint more millionaires?" Although I think Bitcoin could prove to be a good long-term investment in the ... (full story)