interstellar involution king

2000 AD.
Human power generation: coal boils water.
Humans in space: chemical rockets.
5000 AD.
Human power generation: magic modified version of controlled nuclear fusion to boil water.
Humans go to space: a modified version of the working medium thruster.
The population has exploded, but technology has been stagnant for a century, and the intergalactic spaceship has been difficult to produce for many years. What should I do?
Roll it!
On the first day of time travel, Lin Yuan was involved in resignation, or resigned naked.
Just after resigning, he was thrown off the spaceship.
"Since everyone rolls like this, then I'll be the roll king!"

Key words of the novel: No pop-up window for the king of the interstellar scroll