Dr. Downie seemed to present it as though it would be very easy: You would sit down and work out this arrangement, and you would discuss intolerable suffering. Of course, you're not experiencing that intolerable suffering, so you're discussing it beforehand, without living it. Somehow, however, according to Dr. Downie, this will result in a written request that will be able to speak for that patient without needing the guidance of a third party, because it could all be assessed objectively to determine whether or not the patient's wishes could be carried out.
What are your thoughts on that?