i think the best investment for now , bitcoin .. i see bitcoin from 2014 and now 2017 , the price is very shocked . . and many more country accept this bitcoin ,, more reason i have why must hold bitcoin 
Although fluctuating , but i believe bitcoin can success better than gold ..
Your right this year 2017 the price of bitcoin is really shocked. If you compared the price of bitcoin in 2014 to 2017 thats is already difference. As of now yes the price of bitcoin is good better than gold but gold also is good investment . In bitcoin yes your money have potential to increase very big but it is very risky because the price of bitcoin is not stable If you are risktaker invest in bitcoin but if you want sure profit choose gold but you can wait many years or decades before your money earn. Although fluctuating , but i believe bitcoin can success better than gold ..