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