A while ago a nice graph was doing the rounds, indicating what the impact will be if a specific group of people adopted Bitcoin.
It was showing different investment sectors and what the impact would be on the Bitcoin price, if they invested in Bitcoin. Unfortunately I cannot find it now, but it motivated me a lot to think about the scope of adoption, when these investments could find their way to Bitcoin.
Just imagine what would happen if only 20% of the money invested in Gold, could find it's way into Bitcoin for instance. Gold is just one of the precious metals.
Just imagine what will happen if people stopped saving money in Banks at low interest rates and rather invested that into Bitcoin.

What shift in investment in your opinion, will have the biggest influence in the Bitcoin price? How will that shift, influence the world economy?
It looks like futuristic but I think if all of the countries use Bitcoin as their reserve just like gold reserve maybe the price now of BTC would go quadruple. Since BTC coins are very limited the scarcity will make it very valuable. But in reality this scenario will never happen because US will never allow other currency to rule the financial market.