Theory of Knowledge

 

 
   
   
   
   
   
   
   
   
   
 
 
 
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  The Perceiver and the Perceived

 
 

You should now have a list of assumptions which most, non-philosophers would agree to. These things might include: the world exists apart from our perception of it; physical laws are certain and can be tested; objects continue to exist when no one is there to perceive them; and so on.

This theory supposes that the process of perception has two main parts: the perceiver and the perceived.

 
The problem with this viewpoint is that there seems to be no way of distinguishing between truth and illusion. In other words, whether I am looking at a real person, or just an illusion (caused by sensory mistake, hallucination, etc.), there is no way I can tell them apart.

Discussion

Imagine this situation: I am making a cup of tea; I go to the sink, fill the kettle, plug it in and switch it on. I turn around to get some cups, but when I turn back I discover that the kettle is gone. No one has come into the room - I am alone - and the kettle is nowhere to be found. Is there any way that the direct theory of perception can help me understand the situation?

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