Rishimba - I fully understand the difference between plastic and plastics and I was using the word plastic as an adjective to describe my analogy.

A person’s integrity is also plastic such that when it deforms beyond an acceptable limit (plastic deformation), it is equivalent of having no soul, meaning person is just a physical body with no purpose in life, almost an animal.

Although, some animals are better than people as they do project emotions indicative of having a soul. There is nothing more important that a person’s integrity when it comes to interacting with people in a society.

I can still not relate to DNA driving our Mental Nature but i am currently reading up on it. let me get back to you on that when i have more information on it.