I am very glad to know that you are going to be launch a new which you named "Rainbow City". You are welcome in Bitcointalk forum as an innovator or new project launcher. This forum helped a lot to develop cryptocurrency till now. It has helped thousands of projects to develops and prevented/diagnosed too many scammers, cheaters to keep the crypto environment free some extent. You have said correctly that "Bitcoin represents a new human civilization". Already Bitcoin has become a part of human civilization and Blockchain technology already brought a revolution in many aspects inside and out side of crypto.