You could exchange transaction blocks with p2p network even on paper. It is not very handy, but is possible.
Any media that allow peer-to-peer connections could be used.
In simple case when you don't have internet access at all, you could easily pay somebody with your private key for the address with necessary amount of coins. Just write that private key on piece of paper and give it to another person. Since that moment that person will be able to use that money if he have internet.
It is amasing, that most interesting features of Bitcoin and other really independent crypto somehow completely unnoticed by most people who like to talk about crypto. They don't even understand what it is, but continously discussing some exchanges, trading, rates to fiat and other crap that have nothing to do with crypto at all.
It is like, IDK, some people discussing market price of fish having no any clue what is fishing, while others just go fishing and have something for lunch or for exchange to neighbour's vegetables he grow, f.e. and absolutely don't care how many senseless pieces of paper could they get for their catch.
You could exchange transaction blocks with p2p network even on paper. It is not very handy, but is possible.
Any media that allow peer-to-peer connections could be used.
In simple case when you don't have internet access at all, you could easily pay somebody with your private key for the address with necessary amount of coins. Just write that private key on piece of paper and give it to another person. Since that moment that person will be able to use that money if he have internet.
It is amasing, that most interesting features of Bitcoin and other really independent crypto somehow completely unnoticed by most people who like to talk about crypto. They don't even understand what it is, but continously discussing some exchanges, trading, rates to fiat and other crap that have nothing to do with crypto at all.
It is like, IDK, some people discussing market price of fish having no any clue what is fishing, while others just go fishing and have something for lunch or for exchange to neighbour's vegetables he grow, f.e. and absolutely don't care how many senseless pieces of paper could they get for their catch.