$BTC Bitcoin, this thing was initially disregarded, but in the blink of an eye, it has become digital gold. Some bought it for a few bucks and now hold millions; others bought in at high prices and couldn't even cry in time. It doesn't rely on banks, isn't regulated, and daily fluctuations of several points are normal. Some say it is the future of free currency, while others claim it is a complete Ponzi scheme. But whether you believe it or not, it has fundamentally changed the world's perception of "money." Will you buy one?