Artificial intelligence

Attempts to construct machines or write programs simulating what is generally recognized as intelligent behaviour have lead to further understanding of the interaction of the individual with the world outside him. An example is Karl Popper's three world concept. The conscious self or mind is referred to as World 2, primary reality. Secondary reality, the world of physical objects and states, is referred to as World 1. The brain is the part of World 1 which relates with the mind through a part which is termed the liaison brain. Also included in World 1 are the rest of the brain and the physical body, the outside world and World 3, objective knowledge or human culture as encoded in the physical world, increasingly through computerization. Books, for example, come within World 3, coding and decoding being through reading and writing. If computer programs are looked upon as means for telling a computer what type of machine to be to carry out a particular required activity, then that process simulates the intelligence process - although it is not necessarily organized in the same way as the human brain is organized.