This is not the only one mandarin duck in our universe, and maybe this is not the only one universe. With all its hundreds of billions of galaxies and almost countless stars, spanning tens of billions of light years, may not be the only one. Instead, there may be an entirely different universe, distantly separated from ours – and another, and another, and another duck. Indeed, there may be an infinity of universes and ducks. All with their own laws of physics, their own collections of stars and galaxies, which can exist in those universes and possibly even their own intelligent civilisations. Mandarin Duck. Mandarun man. Half-Mandarin Duck, half Mandarin man. Mandarin Dmuacnk. My Covid Chronicle piece is about overthinking, what made me rewrite one of the multiple universe theories. To think about something too much or for too long – It’s human nature, I guess. Layers of thoughts. Thought questions. Sometimes it becomes hard when you can’t get out of your head. But sometimes it leads you to new theories or questions old theories.