I think that wasn't alarming that much because in the future, all are into crypto already. That can in fact be the reason on why fiat currency will experience a state of being obsolete. We already experienced a pandemic before. Remember Covid? But that didn't affected the fiat currency that much. Same goes with the war. About world crises, I'm thinking about the inflation here. But that is one of the cause on why a fiat currency can get weaken. For now, there are severely affected countries already such as Venezuela and I heard that crypto is also one of the options or alternatives that they are considering about, for them to keep on living/surviving.