~ We were used to the "Gold Standard" in the past, and it worked out pretty well. But Bitcoin is even better than Gold, so it's likely the world will switch to the "Bitcoin Standard" with decaying Fiat currencies. Nothing is set in stone, so we can only hope for the best. Just my thoughts 
It may be hard to understand for most people in the world at the moment, but these days Bitcoin indeed is better than gold. There's nothing wrong with gold itself, it will always be worth something, but today it's overpriced big time, same as it was 10 years ago. Bitcoin, on the other hand, is now fluctuating around its new bottom.
For profitability reason yes we can say that bitcoin is better than gold but before we can earn with it we must have been more experience dealing with volatility since if we are newbie and been hype up with results shown on internet then maybe we will not like bitcoin at first try. This is why we need to think more and learn more before we enter because bitcoin is volatile and that add the risk upon trying to select this as investment.