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