Or may be we can call it intergalactic financial system as we don't need to send anything physical but the information. And studying about quantum entanglement, it is clear that the information can travel faster then light so it can become a system among planets, solar systems or even galaxies. But first we have to find if really someone is out there to receive them
Yes, I believe that Bit civilization must cross the interstellar. In the follow-up, I will also write a few articles specifically to explain my plan for the concept of bit civilization from this point of view. As Musk's exploration of Mars is getting deeper and deeper, I believe that he or other top humans can definitely achieve human interstellar migration. Human beings will truly go out of the earth, to the solar system, and to the universe. At this time, human beings will change from earth civilization to interstellar civilization. In the process of human evolution to interstellar civilization, there is still the problem of value transfer. At this time Bitcoin is the best or even the only choice. I don't believe it, but 50 years later, when humans start interstellar trade, they will use paper money to trade. At that time, Bitcoin was the best choice. We humans have reached a key point in the evolution of civilization. In order to facilitate everyone's understanding of the concept of "bit civilization", I will write articles from different angles to explain this point of view in the follow-up.