I often think about survivor bias. Like, we see a lot of old people. Thus we assume that we'll probably also grow to old age. At least I did. It was only when my wife had cancer that I realized that all the dead people just aren't around anymore to tell us that they died. We only get to see the survivors.
To drive this home, here's something I overheard on IRC: "You always hear about dolphins saving people from drowning, but you never hear about all the people dolphins have dragged out to sea."
The source of that quote according to IRC: "Dolphins get a lot of good publicity for the drowning swimmers they push back to shore, but what you don’t hear about is the many people they push farther out to sea! Dolphins aren’t smart. They just like pushing things." • Dwight Schrute, The Office
