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