Infinite Protagonist of Creation

I am not the protagonist, but I create the protagonist. I have witnessed the rise and fall of the earth, and I have also created thousands of worlds where technology is at its peak and everyone is cultivating immortality. What kind of technological civilization will the earth be in 10,000 years? If there were no humans on the earth, what kind of civilization would nature give birth to? In the major worlds created, create a protagonist, or go to various worlds to be the protagonist yourself, create systems, and improve the world to harvest energy. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.