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