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