No it isn't.
It's still gold and fiat.
But it would be because bitcoin is new.
It has been popular nowadays
and there are lots of supporters
So someday it would have the potential to become strong.
Thats right dude, bitcoin can not be said as a strong currency, while bitcoin is still in the stage of growing and growing. I think fiat is much stronger than bitcoin. Btw I think gold is not included in the currency