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