If you've been alive between Christmas and New Years, you've probably read a Best of the Year list. Last year, according to The New York Times, Víkingur Ólafsson's recording of Bach's "Goldberg Variations," the actor Bella Ramsey, and a sushi-and-scuba video game called Dave the Diver were worthy of your time and attention. These annual rundowns arrive during a period of reflection, when a full year's worth of human art and industry is about to recede into history. A new take on this list has now emerged: the Best So Far list. What does it mean to offer an account of the best culture of … the first five months of 2024?

As Marcus du Sautoy greets me at the entrance to New College, Oxford, his appearance is a quiet riot of colour. His clothes rather suggest someone who ran into White Stuff or Fat Face and frantically grabbed anything he could find – in this case, a salmon zip-up top, multihued check trousers and shoes that are a headache-inducing shade of turquoise. When we settle down to talk in a nearby meeting room, he repeatedly glances at a notepad – whose pages, just to add to all the garishness, are a bold shade of yellow. They are full of what look like scrawled equations, mixed with odd-looking shapes: the raw material, he explains, of a project involving very complicated geometry. "There's an infinite symmetrical structure that I'm looking at," he says, "and I think the top bit of it will tell me everything that's going on inside it. It's almost like an infinite lake, and I should be able to know everything that's happening in it by looking at the first centimetre."