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