In the case of some total natural disaster or big world war it could happen that Internet network would also be destroyed. But it's not only Bitcoin that depends on the Internet, there are many products, services and technologies that we use on daily basis and that are depending on Internet. In this case this would be a total disaster but I don't think that Bitcoin would become the main payment instrument, this is not its purpose.
but after big disaster not only the internet will effect but i think it will effect all the aspects of live. i think in present time internet has become the basic need of our life and now without internet we even cannot think about. it is now as much important as food, shelter and other basic needs of life. so i thin we should not even think about that bitcoin will come to an end, as it is now the basin need of our life. so we should not think about it. You are mistaken, we actually do not internet at all. Indeed, it gives us many opportunities for earning money, also it plays a big part as a entertainment tool, but that is basically all.
Why would you sit in front of PC or smarthphone to browse the internet, when in the same time you are hungry and you cannot afford to eat, or you dont have a place to go for the night.
Especially in a event of some kind of a conflict, you simply dont even think about using web. You are focused on different things: to make your situation better, and the internet won't help with that issue.
I am not saying that we can’t survive without it don’t get me wrong, but if the internet goes down we are going to go back to the old ages, where we can’t communicate with other people from other countries, we won’t know what is happening or talk with others, we will live alone, banks, online shopping social media, global markets, all of that will go down.
