What exactly is cyberpunk?

It's rain wet streets. It's nights like this with fog rolling in. Cars, faceless people going by, doing the things that they are doing. There's something kinds hypnotic about it. That's when I get inspired. To carry what these streets are like, what the city is like. The mistery, the stories, the thousands of thousands of people that you pass, that they are going by in shadows. In this wet, cold, dangerous environment.