Bitcoin is the most popular cryptocurrency in the world, with a total market cap of over $2 trillion and millions of investors around the globe. But while Bitcoin is still the clear leader in the digital asset space, investors have seen wild ups and downs over the last decade. Once worth pennies, Bitcoin became a global phenomenon, a speculative bubble and now, some argue, a legitimate store of value. Learn More: I Got Rich Investing — These Lessons for Beginners Could Lead To$1 Million Net Worth Check ...