 First, one might argue that the concept of death exhibits only “family resemblance” relations among its instances, as Wittgenstein argued was the case for the concepts of game, language, and many others (Wittgenstein 1953). There are various features of an organism that count towards its being dead, yet there is no authoritative list of features all of which must be satisfied for it to be dead. Each of the following, for example, seems relevant: unconsciousness, absence of spontaneous efforts to breathe, absence of heartbeat, inertness, lack of integrated bodily functions, incapacity to grow, and physical decay. If all of these conditions are present, an organism has surely died. But producing an authoritative shortlist of necessary and sufficient conditions seems futile. One scholar has advanced a parallel claim about the concept of life: