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