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