Death

Death is the surest program that always happens. It's inevitable. It is inexorable. It is inviolable. It is incorrigible. And it is irrevocable. Thus, death is unavoidable and predictable. We may not know the day and time we will die, but we know that we shall die. For this reason, death must be the most important program of every individual on earth - young, adults, and the elderly.