Intelligent design

Intelligent design (ID) is the contention that "certain features of the universe and of living things are best explained by an intelligent cause, not an undirected process such as natural selection." Intelligent design is also the name of a movement associated with promoting the concept of intelligent design.

Overview

A classical teleological argument for the existence of an intelligent creator is the "watchmaker analaogy", most famously expressed by William Paley. Essentially, the argument runs as follows. Imagine walking on a pebbled beach, where the pebbles may be wonderfully shaped beautiful in different ways, interesting and varied one from another. However interesting and beautiful you find them, you will not suspect doubt that they are the products of purely natural causes. However, if amongst the pebbles you find a watch, even if you have never seen a watch before, you will immediately recognise the watch as qualitatively different from the pebbles. Inspecting it, from the intricacy of its design, and the clear purpose of that design, you will inevitably and correctly conclude that the watch is not a 'natural' object but an artifact, something designed by a powerful and intelligent agent.

Even the simplest living form is incredibly complex, giving it the appearance of being perfectly designed for a purpose. The conventional scientific view is that this appearance of design is simply the result of evolution by natural selection, over the four billion years of the history of life on Earth. Proponents of Intelligent Design however argue that this is not an adequate explanation; they argue that essential features of even the simplest living things are "irreducibly complex" in that such features arise only in highly complex systems and do not appear in even a rudimentary form in simple systems.

It is at present true that we cannot reconstruct the evolutionary sequence that gave rise to the simplest form of life; there is too much that we do not know. Accordingly, Intelligent Design theory argues that it is just as appropriate to postulate an intelligent creator to explain the mysteries of life as it is to postulate an intelligent creator to explain the watch found on a beach. The conventional scientific view is that the postulate of an intelligent creator is not an explanation for life at all, but an evasion of attempted explanation. By this view, Intelligent design is not scientific, it has no content, and makes no predictions by which it can be tested. Philosophers of Science have observed that The Theory of Evolution by Natural Selection is also not really a testable scientific theory; for example, Karl Popper regarded the theory as invaluable, but untestable, and described it as metaphysical, and as a research programme rather than a theory. Thus the conventional scientific view accepts that our understanding of life and its origins is imperfect, but holds that, as a research programme, the Theory of Evolution by Natural Selection is a plausible framework for studying and understanding life, that enables us to rationally and systematically address the questions that remain unanswered.

Distinct from creationism

Intelligent design is formally distinct from creationism, in that "the designer" is not necessarily a supernatural deity. Although ID theory does not try to identify the designer, many of its leading proponents have stated that they believe the designer to be the Christian God. The senior fellows of the Discovery Institute's "Centre for Science and Culture" include a number of Roman Catholics, a secular (non-religious) Jew, a member of Sun Myung-Moon's Unification Church and numerous protestant Christians.

Controversy

Intelligent design is highly controversial, often explicitly opposing the consensus scientific viewpoint, although it is often itself framed as a scientific hypothesis. Many scientists have dismissed it as unscientific and untestable and it has not achieved widespread academic acceptance.

Many of the leading proponents of intelligent design are fellows and advisors of the Discovery Institute, a Seattle-based think tank established in 1991. Many prominent proponents are qualified, practising scientists, though very few ID research papers and monographs have passed peer review and made it to publication, underscoring the contentious nature of the issue amongst mainstream scientists.

Opponents of intelligent design contend that it is a religious or philosophical concept which lies outside of the realm of science. They argue that it does not make testable scientific predictions, that it cannot be tested within the framework of the scientific method, and that it does not generate new hypotheses for testing.

Is Intelligent Design science?

In Kitzmiller v. Dover Area School District (2005), a United States federal court ruled that a public school district requirement for science classes to teach that intelligent design is an alternative to evolution was a violation of the Establishment Clause of the First Amendment to the U.S. Constitution. United States District Judge John E. Jones III ruled that intelligent design is not science and is essentially religious in nature.