the fallacy of ...

"Social objects are those objects, like “marriages,” “greetings,” “Presidents,” “questions,” and “soccer goals,” that exist only as and how they are enacted through social processes. Natural

objects, even though they have a substance of their own and obey laws of their own, can only be “understood” by rendering them in conceptual terms because we cannot “see” them as they “are.” While this idea was elaborated by Kant in the 1760s, the point took on new meaning in the early 20th century in the face of a strong tendency at the time to treat the social understanding of natural objects as the real objects. Alfred NorthWhitehead coined the phrase “the fallacy of misplaced concreteness,” in the late 1920s to refer to the positivist practice of treating concepts and abstractions as though they accurately represented the concreteness of things. The human experience of objects, he pointed out, is fundamentally limited by concepts, and thus, the limits of human knowledge are also conceptual."

By Anne Rawls

I've heard this fallacy a lot of times but didn't know its specific meaning.