Dave doesnt remember dying. And furthermore, he didnt even realize he was dead. So before we find out anything more about Dave we must fully appreciate that he is dead. Dead in the truest sense of the word. No longer living. But in addition to this we must realize that Dave had no idea that he was dead, why he was dead, when or even how he died. Dave had no idea even how long he had been wandering the world as dead. He told himself he was just busy. Always busy. Distracted is more what he was. Not dead but distracted. Distracted too much by the rigors of life that he had not participated in the events of living and had subsequently not noticed his own death.