Its advanced version is to travel at the speed of light. The specific operation is to find a narrow path from the "three-dimensional white paper", take a shortcut, and suddenly reduce the distance that should be in space to a hundred times, a thousand times, or even ten thousand times.

In addition to these two methods, there is also an ultimate version.

That is to fold the 'three-dimensional paper', overlap the two points, and pass directly from one point to the other.

Wormholes are a natural example in the universe.

The 'stargate' technology developed based on wormholes, which can transport across galaxies and even at the galaxy cluster level, is based on the third theory.

But in fact, all secondary civilization technologies can only travel at the speed of light at best.

Even among level three civilizations, only a small number of civilizations can completely master the 'super-light speed technology'.

A few among the few can open the 'star gate'.

So how can normal civilized colonization and immigration be achieved at a distance of tens of thousands or even hundreds of thousands of light-years using only light-speed spacecraft?

The version answer is 'interstellar space station'.

The 'interstellar space station' on the waterway can fold the space and allow the light speed spacecraft to enter the 'super-light speed mode' at a fixed distance.

In this way, the navigation time is greatly reduced.
Chapter completed!