Why is it said that there is no future if human beings cannot step into interstellar civilization?

With the continuous progress of human science and technology, the pace of space exploration has been accelerating in recent years. Not long ago, the United States launched a new Mars probe, and it is expected that the United States will launch a new astronomical telescope this year. China also plans to launch Chang 'e IV again at the end of this year to explore the back of the moon.

Although mankind has just stepped into the universe, it is still far from the real interstellar civilization, but I believe this day will not be too far away. One day, when mankind has a spaceship that can really carry out interstellar navigation, it is considered that mankind has entered a real interstellar civilization. At that time, people's eyes will be on the sea of stars, driving their own small spacecraft to explore and treasure in the universe, and tourism companies will also start space travel. People can take a spaceship to visit other planets in the universe and appreciate the elegance of other planets. Whether it is modern civilization or future interstellar civilization, money is essential. After entering the interstellar civilization, the trade will be more frequent. So now there is a problem: the current currency is mainly paper money, and people buy and sell things, and the transaction is still mainly paper money. So in the future, after human beings enter interstellar civilization, will they still be paper money?

This problem is a subject worth studying. Bian Xiao expressed his views. Bian Xiao believes that in the future, paper money will gradually fade out of people's sight, and electronic money will gradually replace paper money. Now when we trade, we use less paper money. Whether shopping in shopping malls or other consumption, credit cards, WeChat payment and Alipay payment have become the mainstream.

After entering the interstellar civilization, market transactions are no longer limited to the earth. When humans immigrate to other planets, it will be very troublesome if people's transactions are still settled by paper money. The future ID card is also different from the present one. Now all kinds of identity cards are fake, and it is easy to be impersonated by others. This will not happen in the future. Entering the interstellar civilization, everyone's ID card is an electronic card, which is bound to their own DNA and people travel. All personal information such as bank account is in this electronic card. Every transaction is to verify my DNA, and the transaction terminal will automatically scan it. If the cardholder's DNA is found to be different from the electronic card, the transaction will be refused.