The speed of light is 299 792 km per second. Now The Earth Sun's light takes nearly eight minutes to reach Earth. So ..................If somebody switches the Sun's light off, it will take us eight minutes to discover that the light has gone out.
The next nearest star is about 8 000 light years away from The Earth's Solar System. So it will take us 8000 years to find out that, the light of the star/sun has been switched off. The other stars are even futher away, some of them million's of light years away.
Thus we can conclude that if the light has been switched off, that except for our sun, we could be living in total darkness in this moment of time.
Even though we can see the old light that is still travelling towards us. The source of this light, IE : The stars may no longer be there, are we living in darkness?
Something to think about.......![]()