Conjectures and Refutations by Sir Karl Popper
In a broad sense science is a systematic quest for knowledge. With this working definition in mind one can see that many areas of human endeavors could qualify as science. Therefore, Popper attempts to find a point of demarcation between science and psuedo-science. "Is there a criterion for the scientific character or status of theory."(1)
The most widely accepted answer to this problem Popper says is induction and empirical method. At this point I find it necessary to define these two terms. One, the idea of induction as it is used in this context is the process of deriving general principles from particular facts or instances.(2) Two, the empirical method is basing an idea on observation or experiment or an idea guided by practical experience and not by theory.(3) The most notable contributor to modern thinking about these two concepts was John Stuart Mill. Mill formulated proofs that he believed to characterize empirical science in his System of Logic (1843).(4)
Popper believes that these two things alone cannot differentiate between science and psuedo-science. He emphasized the hypothetico-deductive character of science.(5) Whereby scientific theories are hypothesized and statements from them can be tested. If experimentation falsifies these statements then they are refuted. However, if the statements survive experimentation then and only then can they be tentatively accepted. No theory, however well tested can be conclusively established. Popper further goes on to say that every attempt to test a theory is an attempt to falsify it. Testability is Falsifiability.
At a convention of the Aristotelian Society at Oxford in 1936; Popper gave his hypothesis which was to become world famous -- "what we call scientific knowledge is hypothetical, and often not true, let alone certainly or probably true".(7) Theories are never really confirmed by experiment, they can only survive from one test to another, remaining hostage to possible disproof tomorrow.
For the first part of Poppers argument I must adamantly agree. Science is a continual process through which induction and empirical method play a major part, Nonetheless, if a theory is to be scientific it must be able to be tested. It must have this component of Falsifiability! If we do not continually test ourselves and strive for reaffirmation we risk falling in to a pit of conjecture and; I would further say that any theory that cannot be falsified by either present means or by proposed means cannot be a scientific one.
One of a few problems that hypothetico-deductivists would find in Chalmers statement is contained in the phrase, “Scientific theories in some rigorous way from the facts of experience acquired by the observation and experiment.’’ Theories are never produced strictly, Popper would say, but firstly crafted through the thought and feeling of a scientist in their given field. This then discards the idea that theories are the result of facts and it then forwards the idea that a theory will be manipulated by individual people as they are no more than a personal concept with reason. Furthermore if theories were derived meticulously from the facts the implication would then be made that the theory is virtually perfect. Yet these theories that are disproven all the time through falsifying this then demonstrates that these theories are not just part of a scientists thoughts but also that falsification is a more precise form of proof and justification than that of induction.
The unificationist account of explanation and the notion of ad hoc-ness as posited by Popper are very similar concepts, but there is a nuance between the two that is worth explaining. Although both notions seem to show why we choose certain explanatory theories over others, they differ in that the model of unification shows us what type of theory we should accept, while Popper’s notion of ad hoc-ness shows us what type of theory to reject. Together, these concepts help us better understand the explanatory model of unification which leads us to a better understanding of why we are inclined to accept certain scientific theories over others. In this paper, I will attempt to show that falsifying theories based on Popper’s ad hoc-ness criteria strengthens the idea of unification by giving people a more specific way of eliminating competing scientific theories in search of the most unified one. First, I will briefly describe the unificationist account of explanation, then I will explain the idea of ad hoc-ness as laid out by Popper, and finally I will show how ad hoc-ness can be used to strengthen the account of unification by means of increasing its objectivity and by providing simpler explanations.
The authority of the theory of evolution can be characterized by defining what qualifies as a scientific theory. Although there are several perspectives regarding what science is, they are based on the same premises. Karl Popper, a philosopher of science, claims that the process of “conjectures and refutations” is the method of science (46). In this process, a
Since the mid-20th century, a central debate in the philosophy of science is the role of epistemic values when evaluating its bearing in scientific reasoning and method. In 1953, Richard Rudner published an influential article whose principal argument and title were “The Scientist Qua Scientist Makes Value Judgments” (Rudner 1-6). Rudner proposed that non-epistemic values are characteristically required when making inductive assertions on the rationalization of scientific hypotheses. This paper aims to explore Rudner’s arguments and Isaac Levi’s critique on his claims. Through objections to Levi’s dispute for value free ideal and highlighting the importance of non-epistemic values within the tenets and model development and in science and engineering,
Without theories, scientists’ experiments would yield no significance to the world. Theories are the core of the scientific community; therefore figuring out how to determine which theory prevails amongst the rest is an imperative matter. Kuhn was one of the many bold scientists to attempt to bring forth an explanation for why one theory is accepted over another, as well as the process of how this occurs, known as the Scientific Revolution. Kuhn chooses to refer to a theory as a ‘paradigm’, which encompasses a wide range of definitions such as “a way of doing science in a specific field”, “claims about the world”, “methods of fathering/analyzing data”, “habits of scientific thought and action”, and “a way of seeing the world and interacting with it” (Smith, pg.76). However in this case, we’ll narrow paradigm to have a similar definition to that of a ‘theory’, which is a system of ideas used to explain something; it can also be deemed a model for the scientific community to follow. Kuhn’s explanation of a Scientific Revolution brings to light one major problem—the problem of incommensurability.
This essay aims to discuss the problems of the common view of science which was presented by Alan Chalmers by Popperian's view and my personal opinions. Chalmers gives his opinion about what science is and the judgment will be made in this essay through the Popperian hypothetico-deductive and my arguments will be presented in this essay. Popperian is an important philosopher of science who developed hypothetico-deductive method, which is also known as falsificationism. In my opinion, I disagree Chlamer points of view of science and this will be present in essay later. I will restrict my arguments into three parts due to the word limitation. Three aspects will be discussed in this essay: justifying the view through the Popper's view, my agreement about the Popper's objections and additional personal opinions.
Any hypothesis, Gould says, begins with the collection of facts. In this early stage of a theory development bad science leads nowhere, since it contains either little or contradicting evidence. On the other hand, Gould suggests, testable proposals are accepted temporarily, furthermore, new collected facts confirm a hypothesis. That is how good science works. It is self-correcting and self-developing with the flow of time: new information improves a good theory and makes it more precise. Finally, good hypotheses create logical relations to other subjects and contribute to their expansion.
At first Popper seems to just be criticizing the integrity of some sciences and/or scientists who nebulously back their vague and general theories with references to observations that may be inconclusive or scanty which they presumably call "scientific method." He cites Freud and Adler's psychological theories, as well as the socio-economic or historical theory or Karl Marx as theories in which "Whatever happens always confirms it."
Earlier Science was treated as an institution but now, it includes many things like "scientific experiments, "theories" etc. The authors argue that this knowledge should viewed in terms of "socially constructed" and not the one known as "scientific truth". This article points that in the social constructivist view, the 'science' it is just another system of knowledge which contains empirical researches and studies. It is basically concerned with what is "truth", how it has emerged, accepted and explained in social domain. ...
Science has played a significant role in the development of society. Other world views, such as Hum...
Popper believes that science does not begin with the collection of empirical data, but starts with the formulation of a hypothesis (Veronesi, 2014, p1). Alexander Bird outlines Popper’s view on the scientific method in his book Philosophy of Science (1998, pp.239-240). This view is that scientists use a process of imagination to invent a hypothesis. However, once this has been established, scientists must attempt to
Ever wonder how the world would be today only if our great researchers implemented a different attitude towards their experiments? It is possible that the results would remain same. However, some argue that the consequences may be altered. Nonetheless, this does not make the earlier learned knowledge valued less or false, just supplementary. Abraham Maslow’s theory challenges nearly all ways of knowing, suggesting that if we limit our thinking, the outcomes remain homogenous, therefore, limiting the amount of knowledge we acquire. Dilemmas are mentioned in order to repudiate from the opinions that are profoundly accepted in the society. If Newton had eaten that apple, instead of using it as a tool to apply the theory of attraction, he may not have exposed gravity. Because he had more tools than a mere hammer and he was sagacious enough to expand his philosophy beyond hunger, he made such an innovation. It is widely claimed that inventions are accidental. In fact, all the chemical elements in the famous periodic table are a result of different tactics towards scientist’s research. As ToK teaches us that there is no possible end to a situation for it is influenced by the perceptive skills of the arguers. There is never a ‘yes’ or ‘no’ or the ‘ultimate answer’ in the conflict, but the eminence of rationalization is what poises the deliberation. This suggestion explains that there is always that one more way to approach the conclusion. Thus, pursuit of knowledge habitually requires dissimilar ways of knowing for it lengthens the verdict.
Generally, science is a hotly discussed and vehemently debated topic. It is difficult to achieve consensus in science, considering the fact that ideas are diverse about even science definition, leave alone the true interpretations and meaning of scientific experiments, philosophies and discoveries. However, these arguments, disagreements as well as continuous trials to find a better reasoning, logic and explanation are exactly what have always been driving science progress from art to art form. It is worth noting that, in Philosophy of Science: A Very Short Introduction, the Author-Samir Okasha explore various way of looking at science via the prism of life by citing a variety of scientific experiments, and providing examples from history of science.
Charlesworth, M. (1982). Science, non-science & pseudo-science : Bacon, Popper, Lakatos, Kuhn and Feyerabend on defining science. Vic: Deakin University Press
The major strength of science is that it has uncertainty and skepticism. Science never claims to be hundred percent accurate. There is always some degree of ambiguity and probability in science. The Heisenberg’s uncertainty in quantum mechanics is a good example of this. According to the Heisenberg’s uncertainty, we can never be sure of the position of the quantum particles. There is always a degree of fuzziness in nature and a fundamental limit to what we can understand about these particles and their behavior. We can only calculate the probability of the nature of the particle and ho...