The discussion centers on the concept of the universe's shape, questioning whether it can be defined as a sphere, cube, or bubble-like form. It raises the issue of whether using the term "shape" implies a finite size for the universe, suggesting that if the universe is infinite, traditional geometric descriptions may not apply. This leads to the possibility that the universe could have a non-geometrical form, making the question of its shape potentially irrelevant. The conversation emphasizes the limitations of current geometric methods in understanding the universe's true nature. Ultimately, the shape of the universe remains a complex and unresolved topic in cosmology.