The streets of London would probably not be a great place to wander around with a DSLR camera during a total, extended blackout.
But if you managed to take some pictures before the inevitable mobs of rampaging cannibals caught up with you, you might find that the city would look unexpectedly beautiful.
Visual artist Nicholas Buer has created this video to showcase what that might look like. He said:
"I first got the idea for the film when I read an article about a blackout in LA in 1994 where people called 911 reporting these strange clouds floating in the sky, those clouds where in fact the Milky Way. It made me think about how the lights from cities have made many of us lose our connection to the night sky. We live in a fast paced man-made world whereby it is all too easy for us to become disconnected from the natural world around us, isolated from what is actually real."