Card in, PIN, declined. Standing at the checkout with a full account and still unable to pay: in 2022, tens of thousands of card terminals in Germany went down for weeks. The new video (German, English subtitles) covers why one account, one card and one currency are a single point of failure, how the 3-2-1 backup rule translates to your money, and why a fallback only counts once you have rehearsed it. A fallback you have never tested is not a fallback. It is a hope. https://youtu.be/im5Aq1Iq8u8