My son Jac said it in 1989 when he was 8, and my ex RLC blogs it now under the title "Obviosophobia."
And it would be obvious — yet wrong! — for you to observe that he misspelled "Obviosophobia."
Now, I'm checking up on R's blog, and I see he's into old quotes — even as he quizzes his 12-year-old son about regret. He remembers: "Someone once called my work 'beautiful but not important.'" Bearing out the truth of Jac's childhood remark, he adds "What a perfect description of this world!"
Are you afraid of not saying things like that?