 Death for you and me is constituted by the loss of our capacity to sustain ourselves using vital activities. This characterization of death could be sharpened if we had a clearer idea of what we are, and its implications concerning our persistence. After all, we cannot retain any capacities if we fail to persist, so if we fail to persist we stop being capable of vital activities. We die. However, what we are, and what is involved in our persistence, is a matter of controversy.