The argument from luck is a criticism against the libertarian conception of moral responsibility. It suggests that any given action, and even a person's character, is the result of various forces outside a person's control. It may not be appropriate, then, to hold that person solely morally responsible. Thomas Nagel suggests that four different types of luck (including genetic influences and other external factors) end up influencing the way that a person's actions are evaluated morally. For instance, a person driving drunk may make it home without incident, and yet this action of "drunk driving" might seem more morally objectionable if someone happens to jaywalk along his path (getting hit by the car).