Von Glasersfeld states that perception and conception is the only way we can receive and know knowledge. Thus he says that we cannot have “real” knowledge of apples because no one really knows what real apples are. They only have their own perceptions and conceptions of what an apple is. Furthermore, our perceptions and conceptions are usually developed from other people’s ideas and knowledge, thus hindering our ability of real knowledge of apples. Von Glasersfeld problematizes the notion of a “reality” external to the cognitive apparatus of the individual knower or learner.
So are our perceptions of apples original or completely our own? Or are they an amalgam of other people's perceptions and conceptions of how they view the world?
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