Amnesia is a disease caused by brain damage or psychological trauma. Essentially, it is loss of memory. It is not easy for me to imagine the life of a person suffering with Amnesia. Does it cause inconvenience? Or does it not matter? How would I feel if I kept forgetting things? And how would I feel if I don’t even remember what it is that I was supposed to remember? That should be less of a problem I would guess, and could even make life simpler.
Then sometimes you come across people who suffer from or rather enjoy selective Amnesia. They can choose what they wish to remember, and what they don’t. It is like a superpower which allows you to display an excellent memory for everything that is convenient for you, and your brain chooses to disregard all inconvenient fragments of reality as virtually non-existent. This skill is usually accompanied by a dose of overconfidence as well.
Have you come across anyone like that?