You don't understand any of it, and then you die. (1.13)
Our narrator wastes no time in setting a grim tone. Fight Club is a response to all those cheesy life-affirming books that get turned into movies on Lifetime and the Hallmark Channel. Fight Club is a death-affirming book.
On a long enough time line, the survival rate for everyone will drop to zero. (2.17)
Fun fact: the world's oldest person was allegedly 132 years old at the time of her death (source). Not so fun fact: everyone dies.
This is your life, and it's ending one minute at a time. (3.47)
This makes that ticking clock during the commercial breaks of 60 Minutes seem really morbid. At what point does a person stop living and start dying?