Its unbelievable that bitcoin crossed the $15,000 at such an early stage. Some people including greatest Financial Advisers are still saying that bitcoin is a buble and it may burst anytime soon. My reply to them is have a look at the Berkshire Hathaway's Chart . It Increased from less than $4000 to almost $300000. If that isn't a bubble even this isn't. Bitcoin and cryptocurrencies are the future. The market capital of Cryptocurrencies just crossed 40 Billion Dollars, and the market capital of Stock Market is almost 70 trillion Dollars so you guys can imagine the value of your investments 5-7 years from now when the market capital of cryptocurrencies will be in Trillions! Stay Invested and enjoy your profits.