For Discussion.....

Actually, every number and every mathematical relationship resides only in the human mind. So, really, all numbers are imaginary! What does that say about the nature of mathematics?

Since the i turns out to have meaning in the physical world, what does that say to you about the nature of Nature?

Does it seem to you now that the structure of Nature is imprinted on the human mind? Can you think of any similar phenomena from biology or philosophy or another discipline?