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