well world without bitcoins will really not go well because some people has JOB with it, making a living from it so a world without Bitcoins is really not good.
I think world without bitcoin it would not be a problem, and nothing will happen. But for the future existence of bitcoin should be considered, because I think bitcoin could be an good alternative money. So the presence of bitcoin should be considered, because if the bitcoin system is repaired, it will be a good alternative money in my opinion.