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