There is no circle

Is there such a thing as a circle? Every separable entity is partially imaginary and partially real. To say something is Abstract is to say its imaginary constituent outweighs its real one and to say something is Concrete is to say its real outweighs its imaginary. Assuming Real is a fundamental notion of the Universe one has to wonder what is then Imaginary? One way to define it is to view it as a mental augmentation applied to the distorted Understanding of the Real. Imaginary is what Understanding is not. Understanding itself is a collapse of myriads of potential mental paths into specific ones once some flexible thresholds have been reached. Hence, when one looks at a tennis ball, one sees a circle but there is no real circle, all there is is a reflection of rubber molecules dancing with themselves and their surroundings. Circle is an augmentation conveniently added by the mind. It is Imaginary. It is not real.