I just wonder how bitcoin really works on local exchange around the world because if you will going to need a real money and you have bitcoin definitely you can sell your bitcoin and exchange it with real money in your local to be used. Well if all people around the world would exchange their bitcoin holdings is it possible because bitcoin is being back up by real money?
It is backed up by us, the investors who has invested their real money into it.
Now coming to the second question of yours, well if everyone starts to exchange their bitcoin all at the same time then it will be almost impossible to fill all the orders because they will be in the same zone that is selling. If there is no buy order against that sell order then it will never get executed and thus the market will remain as it is and there wont be any movement. This is why its not going anywhere as long as the money keeps flooding and backing up the bitcoin.