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