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