"The late Isaac Asimov, interviewed in Bill Moyers' series "A World of Ideas," questioned the traditional religious picture of our fate after death: "When I die I won't go to heaven or hell, there will just be nothingness." Asimov's naturalistically based skepticism about heaven or hell is common among secularists (there is no evidence for such realms) but he commits an equally common fallacy in his blithe assumption about nothingness, namely that it could "be." By substituting nothingness for heaven and hell, Asimov implies that it awaits us after death. Indeed the word itself, with the suffix "ness," conjures up the strange notion of "that stuff which does not exist." In using it we may start to think, in a rather casual, unreflective way, that there exists something that doesn't exist, but of course this is not a little contradictory. We must simply see that nothingness doesn't exist, period.
Harvard philosopher Robert Nozick, in his book The Examined Life, expresses much the same view as Asimov, and in much the same context. He debunks, in a very respectful tone, the wishful thinking that supposes there will be an afterlife involving the memories and personality of a currently existing person. "It might be nice to believe such a theory, but isn't the truth starker? This life is the only existence there is; afterward there is nothing." Although he probably doesn't mean to, with these words Nozick may suggest to the unwary that "nothing" is something like a state into which we go and never return. But, as Paul Edwards explained in "Existentialism and Death," death is not a state, it is not a condition in which we end up after dying. Of course I'm not denying that we die and disappear, only that we go into something called non-existence, nothing, or nothingness..
...But death rules out any such experience or witnessing (of nothing), unless of course we covertly believe, as Burgess seems to, that in death we persist as some sort of pseudo-subject, to whom eternity presents itself as "black velvet." Burgess, as well as Nozick and Asimov, all deny that they continue on in any form, so their picture of the subject trapped in nothingness after death is rather contradictory. Since death really is the end of the individual, it cannot mean the arrival of darkness as witnessed by some personal remnant."
-- tom clark, "death, nothingness and subjectivity"