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