What goes around, comes around
A long, long time ago, when I was a child, my family had a complete set of volumes of the World Book Encyclopedia – I believe they had been purchased for my father when he was a child – that had been published before the discovery of Pluto.
I remember feeling smugly superior, from my perch in the space aged ’50s, when I read the article about the eight planets of the solar system. Turns out they were right all along.