That’s probably the scariest thought of immortality. Living normal life is one thing… hell most the things are just… more of the good and bad. But yeah over the course of thousands of years, the million to one scenerios that could get you trapped. (landslides, earth quakes, building collapses, swept out to sea, intentional “murder” (IE an enemy knows he can’t kill you, so he entombs, burries you etc…)