I too am sorry to hear the news. I can really sense the emotional debate in this situation and it is very uncomfortable. Being one who fights to the end it would crush me to give up because of that slim possibility the outcome could change. But we are not Joyce and not in her immediate family. For guidance Joyce should be the one to decide based on quality of life. If she is not capable then the family has to make the decision.Is enough enough and what is the potentialquality of life? My heart goes out to you.