It could be, but it isn't, which is part of what's so interesting about it. (And that's leaving aside the more fundamental point that the very definition of a

It could be, but it isn't, which is part of what's so interesting about it. (And that's leaving aside the more fundamental point that the very definition of a Gömböc isn't applicable in the physical world, where objects do not have precisely defined edges and cannot be completely homogenous).