One area which could significantly inpact on our survival is disease, specifically an outbreak of a serious infection such as typhoid or cholera
or even a local or global viral pandemic. People "dropping dead in the street"
as a result of a rouge bacteria or virus has been a reality in the past (The 1346-1353 Black Death and 1918-1920 Spanish Flu) and even more recently (Covid-19) so it might be wise to prepare for
and have on hand a strategy to protect oneself against such a possibility.