Last night, I read the book Grand Theft Astro by Scott Meyers. A moderately important plot point is about something called the Ibu. This made me think of that.
The book is still sitting next to me from where I set it when I finished reading it. When I picked it up to double check I remembered the word correctly, the book fell open to almost exactly the page that introduced the Ibu. Oddly serendipitous to allow me to make such a meaningless post.
FWIW, the book was not a masterpiece and has a very recognizable style - positives and negatives - from his books that I've previously read, but I found it enjoyable enough to read in one sitting.