Indeed already from the beginning bitcoin appears very high Bitcoin volatility. Many are happy and some are sad because they lose their funds. Actually no loss or loss of funds. Their money just changed hands. Example "in the year 2013/2014 Bitcoin increased prices up to 1200 dollars or in the rupiah about 15 million and that time decreased drastic to 200 dollars / 2jt rupiah. There is someone who buys Bitcoin at the price of 15 million, then the price drops during the year until 2015/2016 to 2 million rupiah. I think he does not lose if he can manage it by holding / hold Bitcoin until now, and see for yourself the bitcoin price in this year yesterday can reach almost 5000 dollars. You have nothing to lose but just change hands".