As a beta, you can live without it, but you cannot live without it.
In 2114, mankind extended the cannon of truth to the world outside the galaxy. From then on, nothing could stop the pace of colonization.
In 2156, the C-class serum was released, and from then on, the life expectancy of ordinary people reached 150 years.
As for who I am? Li Si, a good citizen passing by.
Purpose: Truth is everywhere within cannon range!