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Hallucinations & Representationalism
Representationalism is the theory that the world we know and see in our minds is not a direct perception of the external world, and rather a representation, or replica, produced by our minds.
A hallucination is a perception created by the mind without external stimulus. It appears real, yet it is not tangible.

I recommend everyone re-watch this at home where the graphics are better and the lights are on.
https://www.youtube.com/watch?v=MH8fPqkpQbI

 Naive Realism vs. Representationalism
The world cannot be exactly as we perceive it to be because there are multiple illusions such as this one, and actual hallucinations, that disprove its reality.
Voila!

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