Catty Catty Catty

As disaster was about to strike, a group of survivors transmigrated into a desolated world and were challenged to a game of survival. From terrifying acid rains, to endless natural disasters, the heavens burn while the earth scorches, radiation is rampant, and nobody is spared from the dangers of this hellscape. The only way one survives is by building a shelter and slowly upgrading it in hopes of surviving another day. 
Luckily, Su Mo awoke a Doomsday Survival System that allowed him to infinitely level up and upgrade his shelter! The main shelter wooden door can be upgraded into a metal door, which in turn upgrades into a composite gate; the wooden spears can be upgraded into bronze spears, which eventually upgrade all the way into electromagnetic spears... While everyone struggled to survive, Su Mo was fully loaded, and well equipped to dominate the post-apocalyptic world. 
"While some of us are lighting oil lamps, he's been using refrigerators!" 
"The walls in his shelter alone are tens of meters thick, it's the safest place on this planet."
"Before I die, I wish to spend one day in his shelter..."

EndlessFantasy Translation 

My Post-Apocalyptic Shelter Levels Up Infinitely!

LambSheepMutton

Many factors limited the continuous progress and development of human science and technology. Three very important points needed to be met.

Technical barriers did not simply mean that a certain material or discipline had reached its limit and could not be broken through without the help of external forces.

Rather, it meant that the knowledge was too unbearable for humans to carry out more in-depth research.

A very simple example would be if civilization returned to the Stone Age like the basin, then only 100 hardworking and intelligent people were enough to push forward the technological progress and manufacturing capability of the civilization.

These 100 people would need to learn how to build stone tools, houses, and hunting and make corresponding upgrades to them.

It was not hard to find these 100 people if you had a population of 1,000,000 at most.

Development Constraints, the Basin’s First Official Diplomacy!