I watched videos, read articles, learned a lot about black holes and got confused: Lets say that a light is doing its way inside a black hole toward the singularity. If it's inside the event horizon, can this light escape it? I heard that if you want to escape from the event horizon you have to do it faster than the speed of light, can you escape it by the speed of light itself? I also heard about a conspiracy which says that people use to think that a black hole called like that because even the light can't escape it, it says that it's called like that because the light is red-shifted so much that it becomes invisible, so I don't get it: can the light go back since it enters the event horizon or that it'll do its way toward the singularity and never return back? In addition, there are differences between a ray of light doing its way in a black hole or a mass about the speed of light in a black hole?