I had a frightening thought. Bitcoin is Noah's Ark. If the end of the global currency comes, eventually every nation will have no choice but to recognize Bitcoin. It's not a matter of choice because there is no alternative to Bitcoin. When that time comes, even those who mocked the volatility of Bitcoin will no longer be able to laugh. However, billions of people around the world will suffer due to the demise of fiat currencies. Until that time comes, I believe that nobody thinks it will happen. The story of Noah's Ark in the Bible bears a striking resemblance to this. When a flood occurs, many things disappear for a long time. We need to think more seriously and contemplate about Bitcoin.