The terror theater that the Islamic State, or ISIS, is perpetrating these days is certainly in a different category than Internet nastiness. But the beheadings and the monstrous act of human incineration are also insults designed to generate a visceral response.

They are a different kind of play of dominance. They are attempts by insignificant men to get the world to recognize their power and status.

These Islamic State guys burn hostages alive because it wins praise from their colleagues, because it earns attention and because it wins the sort of perverse respect that accompanies fear. We often say that terrorism is an act of war, but that’s wrong. Terrorism is an act of taunting. These murderous videos are attempts to make the rest of us feel powerless, at once undone by fear and addled by disgust.