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