Part of Reality Cannot be Perceived

[Jim__]

9. A mental representation of pi, the ratio of the circumference of a circle to its diameter.

You say:

If there is a realm of ideas, then there can be a human mental representation of an idea. However, if there is no realm of ideas, then there is nothing to be represented. There is merely an electro-chemical process that by luck somehow allows human beings to dominate the world.

Each human mind is a realm that contains mental representations of our experiences. The human mind has representations of a circle, circumference and diameter. Our mind also has the ability to mentally rearrange our experiences. Based on our experience, we can come up with the idea of pi, a relationship between the diameter of a circle and its circumference.

As to:

There is merely an electro-chemical process that by luck somehow allows human beings to dominate the world.

There is a highly structured electro-chemical process where the structures are formed through experience. The mental processes are not based on luck, but rather on selection.