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