The existence of bitcoin has nothing to do with the internet, I mean, if bitcoin dies, the internet will not be affected, but if the internet disappears, bitcoin will also disappear. The existence and value of bitcoin is entirely up to us, not anyone else.
Bitcoin transactions without internet are possible, even if your country's government turns off the internet across the country for a few days. There are several ways to make bitcoin transactions without relying on the internet, and you should pay attention to some of the solutions here:
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https://blockstream.com/satellite/The point is bitcoin would not be 0 if the internet did not exist. Some developers will find ways how to do this including doing it by radio network or SMS. So of course the internet is needed for smooth bitcoin transactions, but bitcoin transactions can still be broadcast without internet.
This is totally new to me, I will learn more about it when I have free time. But the project will succeed, and is bitcoin without the internet true? Because bitcoin was built and completely dependent on the internet from the beginning. And how will your phone or computer work without an internet connection? I have also heard of some methods of sending and receiving bitcoins by SMS, but all will be complete only with a network connection and confirmation on the network. So sending bitcoins by SMS is pointless if the transaction is not connected to the network afterward.