. . . that we know not the day nor the hour. As do most mass-murder or -catastrophe stories.
Like what Jesus said of the Second Coming: “Of that day and hour no one knows, not even the angels of heaven.” Same for death, which like Sandburg’s fog crawls on cat feet.
Walk out the door, and there you go. Odds are immensely greater outside some doors than other, predictability varies immensely. Nonetheless, beyond ordinary or even extraordinary precautionary measures, there’s nothing anyone can do about it.
Blithe Spirit 