Good list. There's a fourth major factor that might even be bigger than those three combined: How receptive the viewer is to ideas that don't mesh with their cu

Good list. There's a fourth major factor that might even be bigger than those three combined: How receptive the viewer is to ideas that don't mesh with their current world view. Any discussion about fundamental preparedness has to be had with someone who's not already on board with the idea, otherwise it's just preaching to the choir. This means that the conversation will inevitably challenge their world view, often fundamentally. This is not a comfortable exercise for the recipient. Many folks are deeply uncomfortable entertaining new ideas, and doubly so if the implications of those ideas would be unpleasant to them and theirs. For many people, if someone suggests to them that they might find themselves in a life threatening situation, is taken as if the person proposing that scenario is directly threatening their life. Fundamentally it's an unfortunate human instinct to want to shoot the messenger, as an emotional reaction to the message.