In the next five years, the bitcoin can not be developed from $650 to $6500?
Well,I believe that nothing is impossible. Because at first I really didn't thought that bitcoin will value at 650$ but look at its value now. So I think it is possible that the amount of bitcoin will be convertible to 6500 dollars. Maybe not now but in the coming years. This will took place when there are only few people who are mining and when bitcoin is popular and widely used in all over the world.
Since the total market cap of bitcoin is very less, as compared to the FIAT, so if all people start using n thrusting the bitcoins, there is a very good chance that bitcoin will climb very high is a short amount of time.