An important individual in the school of scientific realism is Karl Popper. Karl Popper is regarded as one of the greatest philosophers of science of the 20th century. Popper outlined in his work, Realism and the Aim of Science, the school of realism and made his own arguments to back up the ideas of realism. Popper views the search for truth as “one of the strongest motives for scientific discovery”, just like realism does. He also is a proponent of the concept that science is progressive in nature just like realism claims. Popper was also a fan of the method of falsification, which was not a way to reject or get rid of the original scientific theory, but simp...
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The best argument in favor of anti-realism is the under-determination of theory by the data. This theory states that the empirical evidence available at any given time will always “undermine, or will not be able to completely discriminate between, alternative theories.” The best way to conceptualize this theory is to imagine plotting points on a standard axis and then draw a curve to fit those points. If you think of the points as data and the curve as the theory that explains those data, it will soon become obvious that there are infinite ways to connect those points or that “the points under-determine the curve”. But as you find more and more data points, many of those other curve possibilities will be proven false. The main point of this argument is that scientists are after what works, not what is true thus arguing against one of the main tenets of realism.
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