What is the coolest shape in the world?

The coolest shape in the world is often considered to be the torus, which resembles a doughnut. Its unique structure allows for fascinating mathematical properties and applications in physics, such as in the study of magnetic fields and in the design of fusion reactors. Additionally, its continuous surface and lack of edges give it a smooth, balanced aesthetic that many find visually appealing. Other contenders might include fractals, which exhibit infinite complexity and self-similarity, captivating both mathematicians and artists alike.