That's about relativity. Most of the people are conventionally (and clinically) considered sane while almost all of us suffer from all sorts of cognitive biases

That's about relativity. Most of the people are conventionally (and clinically) considered sane while almost all of us suffer from all sorts of cognitive biases and unreasonable illusory beliefs. I don't know how many but I'm sure many people also have extremely low (hardly too much above that of a anon-lucid dreamer) levels of conscious self-awareness, introspection, rational reflection and self-regulation skills (not because they were born "NPCs" but because they have never been taught nor had to exercise these things). Yet, again, all these people are diagnosed as sane. So, when sanity standards are so low, it makes sense to introduce the "hypersanity" category to describe a person whose mindfulness and rationality skills are developed well above average.