I've always thought three standard deviations above the mean was a 145 on the Stanford Binet scale. Anyway, I have a 153, and I wouldn't use "clarity" to describe my mental state. I think, if anything, it brings a sense of humility: realization that there is much that we don't know, perhaps can never know, and that limits us, yet acts as the driving force for inquiry. I don't think true "clarity" can ever be achieved.
I'd love to know the basis for that. This is precisely my point, in fact: you think you know things, and can pontificate accordingly, while I admit that admission to incontrovertible uncertainty is not shameful. Now, if you're speaking of clarity vis-a-vis others, you may have a point.