I agree with you คนถางทาง

There is no magic "high-tech" about abstracting, modelling and design. Anyone can do this. Young children, once they start reading "children books" can understand the concepts of abstraction by looking at cartoons and drawings in the books. The children learn from abstracts (in picture forms) quite quickly. It is when they (we) learn letter and grammar that our abstraction skill is "capped" (due very much to "technology" (type-writer, digital representation,...) limitation. Our (their) ability to read diagrams, pictures, gestures,... real world is also capped.

Why am I writing this? ;-)