I am a traveler in space and a traveler in time; I pursue the truth and search for the origin; I travel the heavens and seek the truth in all worlds; I am a preacher and an adventurer. In addition, I am really fierce, super fierce (see the cover) )! Statement 1: This book tries to follow the route of reasonable cognition of the world, has its own views and settings, don’t disturb if you don’t like it! Statement 2: The content in this book is not really scientific and not all reasonable, because there is no actual basis , is purely the author's mushroom idea, and the author can't write a novel without bugs.