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