What is Reductionism?

There are two different types of reductionism. One is called methodological reductionism, the other one theory reductionism. Methodological reductionism is about the properties of the real world. It’s about taking things apart into smaller things and finding that the smaller things determine the behavior of the whole. Theory reductionism on the other hand means that you have levels of theories where the higher – emergent – levels can be derived from the lower – more fundamental – levels. But in this case, a high level does not necessary mean the theory is about large things, and a low level does not necessarily it’s about small things.
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Видео What is Reductionism? канала Sabine Hossenfelder