"When you show the world you know you need to lie for your faith you show the world you know your faith is a lie".
What they say:
And yet, the theory is invaluable. I do not see how, without it, our knowledge could have grown as it has done since Darwin. In trying to explain experiments with bacteria which become adapted to, say, penicillin, it is quite clear that we are greatly helped by the theory of natural selection. Although it is metaphysical, it sheds much light upon very concrete and very practical researches. It allows us to study adaptation to a new environment (such as a penicillin-infested environment) in a rational way: it suggests the existence of a mechanism of adaptation, and it allows us even to study in detail the mechanism at work. And it is the only theory so far which does all that.2
When speaking here of Darwinism, I shall speak always of today's theory – that is Darwin's own theory of natural selection supported by the Mendelian theory of heredity, by the theory of the mutation and recombination of genes in a gene pool, and by the decoded genetic code. This is an immensely impressive and powerful theory. The claim that it completely explains evolution is of course a bold claim, and very far from being established. All scientific theories are conjectures, even those that have successfully passed many severe and varied tests. The Mendelian underpinning of modern Darwinism has been well tested, and so has the theory of evolution which says that all terrestrial life has evolved from a few primitive unicellular organisms, possibly even from one single organism.
I still believe that natural selection works in this way as a research programme. Nevertheless, I have changed my mind about the testability and the logical status of the theory of natural selection; and I am glad to have an opportunity to make a recantation. My recantation may, I hope, contribute a little to the understanding of the status of natural selection.1,3
Sir Karl Raimund Popper
One is tempted to ask why creation pseudo-scientists need to use these methods if they are so sure the facts support them, but the answer is probably too obvious.
1. Miller, David. 1985. Popper Selections.Further reading:
2. Popper, Karl. 1976. Unended Quest: An Intellectual Autobiography Glasgow: Fontana/Collins.
3. Popper, Karl. 1978. Natural selection and the emergence of mind. Dialectica 32: 339-355.