LogFAQs > #922948128

I know its correct over saying "i could care less" so im not arguing something that is literally correct. So it doesnt make sense to me but I aint about to argue with english scholars and people who are smarter than me.

But I always interpret it as meaning you do care, on some small level, because the baseline of care hasnt been established to be zero. Though I understand "I could care less" to actually mean you care, but I don't see how "couldnt" gives us the opposite.