Yes, that's possible. A person with dementia can live a long time after having reached the terminal phase of the illness and, at the end of the line, not die from that illness but from collateral effects. That's what leads me to my next question.
Are you advocating two different regimes to cover two types of medical conditions, a regime of advance requests for medical assistance in dying and a regime for advance medical directives like the one we have in Quebec?
I'll add my next question right now. Do you believe it's necessary for a patient to have previously received a diagnosis?