I heard that bitcoin is a good investment for making a huge profit in the future , is that right ? Because i want to buy some bitcoin in these days .
Yes, bitcoin is indeed the right choice to change the economy for the better. You can start it for bitcoin investment and wait for it to make a profit.
Economy has nothing to do with digital currencies. As far as I know, it is just for the efficiency of the users so we can use and bring money easily. We can also have our freedom since bitcoin wallets are somewhat anonymous so no one will really know or monitor how much do you have. And if we are talking about our profit, I think it is only for ourselves.