What are rational approaches to preparing on an individual level for the possible occurrence of various types of catastrophes? I'm not referring to proactively trying to stop the catastrophes, but rather to being prepared in case something does happen. I'm primarily interested in global catastrophes (pandemic, economic catastrophe, solar flare knocking out the internet, etc.). But I'm also curious about rationalists living in areas susceptible to regional disasters (local economic collapse, wars, hurricanes, earthquakes, volcanoes, ecological disasters, etc.) - what do you do to prepare for these possibilities?