The cultural context can be a factor too. A cologne with ingredients that are native to a particular region might tell a story of that place. For instance, a cologne with oud from the Middle East could tell a story of the rich, exotic culture there. The scent can transport you to that place and give you a sense of its traditions, people, and history.
Well, it could be that Harry is raised in a world where cologne has some sort of magical property. Maybe the scent of a particular cologne is used to protect him or give him special powers. For example, the cologne might be made from rare magical ingredients and whenever Harry wears it, he can blend into the Muggle world more easily because it masks his wizardly aura.
Well, it could be various things. It might refer to stories that are not following the mainstream trends. For example, in the business world, it could be about small local companies that are succeeding in unique ways while not following the typical big - city corporate models. They might be using traditional methods in a new context or serving a niche market that others have overlooked.
The 'Trouble with the Curve' is a story about an aging baseball scout. He has some problems like his eyesight is failing but he still wants to prove his worth in scouting new talent. He goes on a trip to scout a player and has to deal with various challenges along the way, including his difficult relationship with his daughter.
Without having read the novel, one can only speculate. Maybe the 'curve of the world' is a metaphor in the story. It could be about how different events or characters are connected in a non - linear way, like the curve of the world isn't a straight line. It might explore themes such as fate, destiny, and the unexpected turns that life can take, all within the framework of a fictional narrative.