- published: 06 Apr 2014
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Explanatory power is the ability of a hypothesis or theory to effectively explain the subject matter it pertains to. The opposite of explanatory power is explanatory impotence.
In the past, various criteria or measures for explanatory power have been proposed. In particular, one hypothesis, theory or explanation can be said to have more explanatory power than another about the same subject matter
- if more facts or observations are accounted for;
- if it changes more "surprising facts" into "a matter of course" (following Peirce);
- if more details of causal relations are provided, leading to a high accuracy and precision of the description;
- if it offers greater predictive power, i.e., if it offers more details about what we should expect to see, and what we should not;
- if it depends less on authorities and more on observations;
- if it makes fewer assumptions;
- if it is more falsifiable, i.e., more testable by observation or experiment (following Popper).
Recently, David Deutsch proposed that the correct hypothesis or theory, the one that stands out among all possible explanations, is that specific explanation that
Clinton Richard Dawkins FRS FRSL (born 26 March 1941) is an Englishethologist, evolutionary biologist, and writer. He is an emeritus fellow of New College, Oxford, and was the University of Oxford's Professor for Public Understanding of Science from 1995 until 2008.
Dawkins first came to prominence with his 1976 book The Selfish Gene, which popularised the gene-centred view of evolution and introduced the term meme. In 1982, he introduced into evolutionary biology the influential concept that the phenotypic effects of a gene are not necessarily limited to an organism's body, but can stretch far into the environment. This concept is presented in his book The Extended Phenotype. In 2006, he founded the Richard Dawkins Foundation for Reason and Science.
Dawkins is a noted atheist, and is well known for his criticism of creationism and intelligent design. In his 1986 book The Blind Watchmaker, he argues against the watchmaker analogy, an argument for the existence of a supernatural creator based upon the complexity of living organisms. Instead, he describes evolutionary processes as analogous to a blind watchmaker. In his most popular book, his 2006 book The God Delusion, Dawkins contends that a supernatural creator almost certainly does not exist and that religious faith is a delusion. He is an opponent of creationism being taught in schools. He makes regular television and radio appearances, predominantly discussing his books, his atheism and his ideas and opinions as a public intellectual.