It feels like such a slippery slope, you know? I believe this, and I know it's true, to an extent, but at the same time, can't help thinking of all the people who waste years thinking they're that person.
Partners or friends or family members of addicted people, thinking "If I believe in them, they'll change". Meanwhile, neglecting their own transformation, their own life journey. I think when what you describe here happens, it's fucking magical. Nothing short of a miracle.
I just don't think it happens all the time.