A man who is in a gravely ill condition refuses to go see a doctor despite the many advises he is given. Days go on and his illness grows worse until, at last, he falls out of consciousness and an ambulance is called in to rush him to the hospital. If he survives the damage he suffered will not be reversible, and he will be forced to live on in a diminished existence.
Man, the rational animal, will not do the one rational thing that ensures his future survival, the survival of humanity. Could it be that, after all, man is irrational? Rationality — if we believe his claim, that he is rational — has been a tool at work against his survival — rationality as his greatest stupidity; its progress and advancement leading to his extinction.
Man, the animal with no control over his impulses and will, ultimately wills his own end.