Void Jigsaw Puzzle

[No routine, no upset, no harem, attitude] The story takes place after "Through the Desolation". As the earth enters an irreversible warming channel and becomes unsuitable for human habitation, humans launch the "Dandelion Project", which digitizes the entire human civilization, compresses, encodes and modulates it, and turns it into a radio signal to broadcast to the depths of the universe, hoping to encounter a civilization with a certain level of technology, demodulate, decode and decompress the received signal, and carry the information in a new carrier, so as to continue human civilization - even a part of human civilization... I don't know how long it will take, the edge of the universe...