The problem is the logic can lead you down a bad path. 1. Let fully lucid patients make a decision to die. 2. Let partially lucid patients make a decision to

The problem is the logic can lead you down a bad path. 1. Let fully lucid patients make a decision to die. 2. Let partially lucid patients make a decision to die. 3. Let family members of non-lucid patient makes a decision to die. 4. Let doctor make a decision for a patient who "would clearly want to die if they could speak".