I agree with your observation. I will add that habits formed before Dementia struck are more or less intact (for instance, the patient can log into their hotmail with the password already stored). The inability to learn new things just means that no new passwords can be learned, and no new environments can be learned. It would be great to develop habits before the dementia gets full blown. Like the habit of going to a particular location each day and updating one's life every morning (like 50 first dates).