Mass chaos would ensue. People do not realize how dependent we are on electricity. Imagine all communication, most vehicles, most electronics stop working. Electric grid down. It would be down for an extensive period weeks, months maybe even years. Even such a seemingly simple task as starting up the grid from being down is not a trivial task. I think we have a hard time understanding what it would be like. Performing simple tasks would be much more difficult. Just take as simple of a thing as making your coffee. If you are lucky you have some propane, otherwise it is wood burning stove or open fire. I am shuddering just thinking about no coffee.I sometimes wonder what would happen to society if there was a massive EMP from any one of several possible sources. Do you think society would collapse when only about 5% of electronic devices continued to work or would people pull themselves up by their bootstraps and keep on living? I use and enjoy many modern appliances/gizmo’s/gadgets but I have, and know how to use, appliances/gizmo’s/gadgets that don’t use electricity.