I think bitcoin and bank investment are same risky regarding money, but the difference between the two i think in bitcoin only in the market value of the coin that is not fix every now and then, in short we know already that this bitcoin is volatile in nature and we are aware of the flow and we have the direct control of our investment, while compare to the bank base the experience of my mother, her money was deposited in the bank in a long period of time, and suddenly said bank file a bankruptcy, her money in the said bank was gone, she recieved only small amount of money, and they cannot force the bank to give back her money diposited.