Elderly people with dementia, or people who have been injured in accidents, may also have no sense of the future. Can they also be killed?
A. When a human being once had a sense of the future, but has now lost it, we should be guided by what he or she would have wanted to happen in these circumstances. So if someone would not have wanted to be kept alive after losing their awareness of their future, we may be justified in ending their life; but if they would not have wanted to be killed under these circumstances, that is an important reason why we should not do so.