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