I have come to the conclusion that Darwinism is not a testable scientific theory, but a metaphysical research programme.
Interpretation
Popper critiques Darwinism as more of a philosophical framework than a strict scientific theory.
In this quote, Karl Popper argues that Darwinism should not be classified as a scientific theory because it lacks the capability to be tested or falsified. Instead, he views it as a metaphysical approach to understanding biological evolution, which suggests that its principles are more about a broader philosophical outlook on life and nature rather than empirical science that adheres to rigorous testing standards.
In practice
This quote can be used in a scientific discussion on the validity of evolutionary theories.
The growth of our knowledge is the result of a process closely resembling what Darwin called 'natural selection'; that is, the natural selection of hypotheses: our knowledge consists, at every moment, of those hypotheses which have shown their (comparative) fitness by surviving so far in their struggle for existence, a competitive struggle which eliminates those hypotheses which are unfit.
If you can't say it simply and clearly, keep quiet, and keep working on it till you can.
No particular theory may ever be regarded as absolutely certain.... No scientific theory is sacrosanct.
The belief in a political Utopia is especially dangerous. This is possibly connected with the fact that the search for a better world, like the investigation of our environment, is (if I am correct) one of the oldest and most important of all the instincts.
A rationalist is simply someone for whom it is more important to learn than to be proved right; someone who is willing to learn from others - not by simply taking over another's opinions, but by gladly allowing others to criticize his ideas and by gladly criticizing the ideas of others
Thus science must begin with myths, and with the criticism of myths; neither with the collection of observations, nor with the invention of experiments, but with the critical discussion of myths, and of magical techniques and practices.
Even your chin is made up of exploded stars.
To promote the healing response, you must get past all the grosser levels of the body - cells, tissues, organs and systems -- and arrive at a junction point between mind and matter, the point where consciousness actually starts to have an effect.
The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.
The notion of superhumans is using bioengineering and artificial intelligence to upgrade human abilities. If they use the power to change themselves, to change their own minds, their own desires, then we have no idea what they will want to do.
Working out another system to replace Newton's laws took a long time because phenomena at the atomic level were quite strange. One had to lose one's common sense in order to perceive what was happening at the atomic level.
The psychological profiling [of a programmer] is mostly the ability to shift levels of abstraction, from low level to high level. To see something in the small and to see something in the large.
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