TaS Finals Flashcards
(39 cards)
Language Games
Ludwig Wittgenstein. The meaning of words and statements are determined in a social linguistic context, and language is no longer a representation or image of reality. There are many different language games, implying that a word does not have a single meaning. There are no private languages, languages, as in games, have public rules. One cannot make their own rules.
Example: “God is good.” This sentence has meaning in the language of religion, but not in the language of science.
Relativism
Ludwig Wittgenstein. Everything is relative to the context. The truth is relative to the community you are in and therefore everyone has their own truth.
Constructivism
Observations themselves are “contaminated” by our thinking. Thinking along these lines, reality becomes our own construction. When our theories change, what we consider to be facts that make up reality changes with them: constructivism. “reality” and “truth” are no longer to be taken at face value.
Theory-ladenness of observations
Theory guides our observations. There are no neutral observations. We see what we see in the light of already acquired expectations and preconceptions.
Paradigm
Thomas Kuhn. Not well defined, as there have been 22+ meanings. A paradigm is namely a set of universally recognised principles: theoretical perspective, shared worldview and methodological processes. This paradigm refers to the work of a “scientific community” in a certain era. They are incommensurability according to Kuhn.
Incommensurability
You cannot compare them and scientist cannot communicate with someone in a different paradigm. There is no objective way to compare the paradigms, as you would need to look from the point of one paradigm. Kuhn later said that even though it was impossible to translate certain terms from one paradigm to another, scientists could still understand each other.
Pre-science
Thomas Kuhn. As much opinions as there are researchers. No paradigm, no consensus about theories, techniques, methodology, etc.
Normal Science
Thomas Kuhn. Begins with the emergence of a paradigm. Within the paradigm, puzzles are solved, which leads to rational activity: expansion and elaboration of the paradigm.
Anomalies
The phenomena that cannot be explained from within the paradigm.
Crisis / abnormal science
Thomas Kuhn. A crisis is a period in which abnormal science takes place. Sometimes, the anomalies don’t get solved and accumulate crisis. This is a condition for a scientific revolution.
Scientific revolution
Thomas Kuhn. A paradigm shifts takes place: scientists jump (irrational) from one paradigm to another. Kuhn calls them revolution because of three reasons:
1. A small group of people became aware of the shortcomings.
2. Change from within is impossible.
3. One cannot achieve consensus in a political discourse if one’s goal is totally different.
It’s like a Gestalt switch, a process whereby someone’s perspective changes from one thing to another.
Logical rationality
It is according to objective, logical rules and about the application of these rules. Induction and deduction are there, so there should be a formal aspect to get to go by a logical analysis. Scientists determine it from the outside what it should entail.
Lakatos, Popper and LP try to find the rationality of science. According to them, they could find this in logic.
Scientific rationality
Rationality is not the result of application of logic, but it is about the exchange of reasons (arguments and justifications) and trying to come to the best possible solution by using the best reasons available and coming to a consensus. Scientists are still human and they determine it from within.
Tied to Kuhn and Peirce. By coming to a consensus, it is true. Pragmatic form of rationality (Peirce), and the paradigm shift of Kuhn.
The Strong Programme
David Bloor and Barry Barnes. Also called “the Edinburg school”. Argued that Kuhn was not radical enough in his views. We have to look at every belief and their social processes, not only the irrational ones. We have to search for the causes of why they came to a consensus about this belief. It is a more neutral understanding of the belief and each community has a different type of belief/knowledge. It has four basic tenets:
1. Causality: cause and effect, the logical causes as why people come to a belief.
2. Impartiality: we have to be impartial to irrational beliefs.
3. Symmetry: causes explain both true and false beliefs, other ones are not. Truth and rationality can’t explain why we have these beliefs.
a. Equivalence postulate: similar types of causes explain both true and false beliefs. Look for the causes of their credibility (why do people accept them as true?) and there should be empirical investigation.
4. Reflexivity: sociology of knowledge is itself a form of knowledge production. They are themselves in a community, then why should we accept their views as true?
Research program
Imre Lakatos. A series of theories with a hard core (definition of the theory, unfalsifiable) and a protective belt (auxiliary hypotheses) around it. The protective belt makes the core concrete: comes with examples, these can be falsified and then changed based on this. It protects the core against falsification.
Testing of the programme always occurs in the belt. Scientists adjust in one of two ways when the belt is confronted with an anomaly.
Degenerative: ad hoc and after the fact adjustments just to save the theory, unscientific.
Progressive: adjustments that lead to new predictions and expand.
Sophisticated falsificationism
Imre Lakatos. A scientific theory is falsified if and only if another theory has been proposed with the following characteristics: it can predict new things that the other theory couldn’t, all old things work in the new theory or some theories have been confirmed.
Methodological anarchism
Paul Feyerband. There is no scientific method, pluralism (different RP’s have to co-exist) necessary to deal with the complexity of the world. All methods one should want to try should be allowed.
Undertermination of theory
Bas van Fraassen. Underdetermination of theory by data. The same data can be explained by an infinite number of logically incompatible, yet empirically equivalent theories. The theories might contradict each other, but they still account for the same theory (empirically equivalent). There are an infinite number of alternative ontologies of unobservables possible.
Instrumentalism
Theories are only useful instruments that enable us to make predictions and manipulate the world successfully. Scientific theories do not have a true value, they are just instruments, not real. A form of anti-realism. Three example fields:
Metaphysical: the world that science describes does not exist.
Semantical: the scientific language cannot be interpreted literally. They are not describing things, they have no truth value, they are just using an instrument.
Epistemological: scientific theories are helpful for making predictions, they are not true.
Scientific realism
the assumption that science tells us something about reality and so that scientific theories are (approximately) true. Three example fields:
Metaphysical: the world that science describes is real. If scientists describe neutrons, then neutrons exist.
Semantical: the scientific language has to be interpreted literally. Refers to the meaning of language, if scientists say electrons exist, they really exist.
Epistemological: scientific theories are true or approximately true.
The Miracle Argument
Putnam. The success of science would be regarded as a miracle if successful scientific theories were not at least approximately true. If scientific theories were not true, then the success of science would be a miracle.
Inference to the best explanation (IBE)
This hypothesis provides the best possible explanation. So, the hypothesis is true. It provides a better answer than something else, the example of the blackbird: if there was a blackbird, there would be a nest → there is a nest → a blackbird has made this next. We are confronted with something and we come up with an account of what we observe. We observe something and we try to give the best possible account of what to observe. However, it is not always a logically conclusive from of reasoning.
Anti-realism
It is impossible to know whether the unobservables that account for the phenomena are actually true. We don’t say whether something is true or not, they just are.
Pessimistic induction of the history of science
Popular theories turned out to be false (e.g. flogiston, the substance that was responsible for burning things), and unpopular were true (e.g. place tectonics, natural selection), meaning their status doesn’t say if they are true or not. Empirical success of a theory is no guarantee for its truth not is empirical failure indicative of falsehood.