What is time migration talking about?

Liu's collection of science fiction, Time Migration, includes Collapse, Westernization, Mirror, Daoism, Destiny, Mountain, Time Migration, Thinker, Swallower, Micro Age, Angel Age, Sea of Dreams and Micro Age. It includes Liu Wei's great art series Ode to Joy and Sea of Dreams.

Time migration: In the future, due to environmental deterioration and population pressure, the Earth government decided to send an expedition to select human members under the age of 25 to migrate to the future. The caravan made many stops, but every time the earth's environment was no longer suitable for human habitation. For the last voyage, the "ambassador" set the time in the future 1 1000. In this future era, the earth has basically recovered its original ecology, and mankind has started the starting point of a new civilization.