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