The black hole and the event horizon The golden rule about the black holes is that we cannot get information from the area what is behind the event horizon. This means that "being in the black hole" means actually "being behind the event horizon". The event horizon is an area around the black hole. That thing is actually the point in the trajectory, what particle goes before it drops in the black hole. And the point, where the particle disappears from the eyes of the observers is called "the event horizon". When we are thinking about information, what disappears behind that point, we must realize that everything, what we are writing or talking about thins, what happens behind the event horizon is speculation. We cannot get any observations of those things, because even the light cannot escape behind that point. So the event horizon is the point, where we can make the last observation of the particle, what is traveling through that point. And that is ...