How could you do it without internet?
Discussion
You could persist it in the postbox. It would show as “pending” until you get online again.
Could it bounce like a bad cheque?
What prevents double spending?
A lot more difficult! But I think I recall SMS was used to send payments in Africa. But if we assume they’re both connected that makes it easier if that is indeed the case.
Yes, offline, http://8333.mobi/ via feature phones and sms functionality. Here #[8] explains https://youtu.be/yknBN08hWOY
Speaking of Machankura: what if a nostr client low data / offline mode has send sms to nostr note + publish service & functionality
Have you seen #[5] ‘s PoS? The merchant can take payments on a very simple (cheap) device with no internet connection. The person paying (who has internet) shows the merchant a PIN that the merchant can confirm means payment was made. Very nifty.
Wow, might benefit from numerous payment pathways for both, either/or, neither having a connection to give greater robustness.
Can run various paths by priority.
But anything is better than nothing.
Quite nice to blend irl commerce with ecommerce with social.