History of Science As A Model of Scientific Progress
Another model of Scientific Progress, as put forward by Richard Boyd, and others, is History of Science as a model of scientific progress. In short, methods in science are produced which are used to produce scientific theories, which then are used to produce more methods, which are then used to produce more theories and so on.
Note that this does not conflict with a continuous or discontinuous model of scientific progress. This model supports realism in that scientists are always working within the same universe; their theories must be referring to real objects, because they create theories that refer to actual objects that are used later in methods to produce new theories.
A good example supporting realism is the case of the electron. It is hard to prove the existence of an electron because it is so small. However, any microscopist will tell you that he knows an electron exists, because he uses it in his electron microscope.
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