In research, we have that entire spectrum. We define illness in simple terms, based on three stages: mild, moderate and severe. In a slightly more specialized clinical environment, we have seven. Stages four and five are moderate. When the person with the illness reaches the severe stage, they lose their judgment. This is a critical point, the point at which, in my opinion, it happens. That's what the Netherlands experience has shown us. That's the critical point where it tends to happen.
I work with memory and judgment loss scales that go up to 70. So that moment might arrive at around 55. These scales exist. Certainly, it takes time and money to define the situation, and by that I mean levels of autonomy and intrinsic pain.