On a long enough time line, the survival rate for everyone will drop to zero.

Chuck Palahniuk (b. 1962) American novelist and freelance journalist

Fight Club, ch. 2 (1997)
    (Source)

The phrase also shows up later in the book, in ch. 24: "On a long enough time line, everyone's survival rate drops to zero."

In the 1999 movie adaptation (screenplay by Jim Uhls), the Narrator's line is "On a long enough time line the survival rate for everyone drops to zero."