Bitcoin is digital currency and it is dependent on internet to hold for long time but mate without internet it is not able to grow for all time but I think internet is not able to stop as a lot of other companies are running with internet. Bitcoin is having safe future but it is all about money to invest and signature campaign if you are not having money you can join it to make money. Bitcoin will die if people will stop investing in it and they will think that it is a scam but thanks to God right now no one is thinking like this.