is able to exploit the energy in its star system,
For example, the warp engine technology,
Dyson spheres are theoretically possible,
The Dyson sphere is simply,
That' s a Dyson sphere,
Even entire civilizations can live in a Dyson sphere,
Then it can be said that it is already a stellar civilization,
There is a good measure of,
na looked at the transparent wooden rimless smart glasses,
It' s a huge building that encloses almost the entire star,
However, the technological level needs to be sufficiently developed,
for the use of civilization itself,
This also means,
The second level is the stellar civilization,
including the energy of other planets, and even stars,
Say slowly:
For example, you can arbitrarily travel between the Milky Way galaxy with a diameter of about 100,000 light-years,
Harvest almost all the energy of stars with high-tech level,
can utilize the full energy of the star system in which it is controlled,
Civilizations that reach this level should be able to travel easily between stars,
And for the second-level stellar civilization,
If a cosmic civilization can successfully control the Dyson sphere,
Dyson spheres are like huge structures made up of countless solar sails,
A Dyson sphere will completely enclose
In theory,
second-level civilization,
even developed a way to travel faster than the speed of light,
One possible way to harness stellar energy is the Dyson sphere,