If the Welby case falls on the right side of the line drawn by Roman Catholic doctrine, the deeper question is whether Church doctrine draws the line in a place that makes sense. If an incurably ill patient can refuse burdensome treatment, knowing that this refusal will mean his or her death, why should an incurably ill patient who is not being kept alive by any medical treatment, but finds that the illness itself makes life burdensome, be unable to seek assistance in escaping that burden?