Obviously you should not invest in bitcoin in 2017 Bitcoin was worth about 19,000$. In a 2 year period the price dropped a hefty 14- something thousand. Thats not a good sign for investors. Honestly if you are going to invest in something watch the fluctuation for more than just a week, or a year but study it. Bitcoin is dumb tbh I dont mess with crypto-currencies. I mess with real stocks and bonds.