April 20, 4023, is the 7th birthday of the naughty girl Xia Lie. Her parents decided to give her a recently popular second-generation artificial intelligence playmate as her birthday gift. Finally named 'her' Blue Star. My parents said that this was the name of mankind's former homeland, and that's how I started to become interested in the history of mankind. So while his parents were busy at work, Blue Star would use the knowledge stored in its system and updated holographic projection accessories to bring Xia Lie, who lived on an inconspicuous asteroid in the Milky Way, back to the time node on Blue Star that had reversed the history of human science in a way that was almost time-traveling...
Concept: An artificial intelligence playmate named Blue Star and the human girl Xia Lie return to important days in the history of human science before going to bed every day to understand and explore the source of today's high technology, and start interesting adventure stories one after another. This novel uses interesting stories to tell the stories of many great scientists in the past, and also imagines the future and what human development will look like after 2023. Finally, the author warms up to the children and sincerely invites everyone to join this journey of scientific friendship!