The instant death zone of nukes will kill, I believe, significantly less than half the victims. Many more people will die of fairly "pedestrian" causes like bui

The instant death zone of nukes will kill, I believe, significantly less than half the victims. Many more people will die of fairly "pedestrian" causes like building collapses or even fire. In other words, a nuclear explosion at medium distance is pretty similar to a chemical bomb hitting somewhere close. So hiding under your desk isn't actually that useless.