This is so interesting, since I simply can not tell a difference between the aspartame/acesulfane and actual sugar in fizzy drinks. I guess I have it easy because of that, but I have a somewhat keen sense of taste otherwise, I cook a lot and can detect what the taste is missing or has too much of pretty consistently, and know the “opposite” tastes/ingredients to apply. And wines and such, it’s sort of a synesthesia thing too, since I kind of feel them as something close to colors. But sweet things I have trouble with. I thought, not sure why, this was a human thing, but it’s interesting to hear someone can detect the sweet things granularly! Cool!