Indirect Realsim
- Created by: AislingGallagher
- Created on: 09-10-16 20:19
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- Indirect Realism
- Features
- Sense-data
- differences in perceptions
- Russell- "content of my perceptual experience."
- Sense-data is mind-dependent, requires perceiver and is subjective.
- Physical objects are mind-independent, doesn't require a perceiver and is objective.
- Perceiver-Perceiver- Object
- experience the world indirectly by perceptions which represent the real world.
- Sense-data
- Veil of Perception
- raises questions regarding the nature/existence of the external world.
- 2 Major doubts-
- Is there a real world of objects causing SD or something else?
- Does SD correspond accurately with the external world?
- 2 Major doubts-
- curtain - can't see what's behind it.
- sense data - VOP - physical object
- raises questions regarding the nature/existence of the external world.
- Scepticism the existence of the external world
- 1) We directly perceive SD
- 2) This makes us think that all we know are sense-data
- 3) We believe that there is a real object causing sense-data
- 4) To know this, we must know that physical objects exist.
- 5) But we only have access to physical objects via sense-data
- 6) Therefore, how can we be sure if the real world exists if all we perceive are sense-data?
- 5) But we only have access to physical objects via sense-data
- 4) To know this, we must know that physical objects exist.
- 3) We believe that there is a real object causing sense-data
- 2) This makes us think that all we know are sense-data
- Matrix / Evil Demon
- Rene Descartes
- doubts everything until he finds certainty to rebuild knowledge
- EVIL DEMON
- Illusion - senses deceive so we fall pray to illusion
- Dreaming - how do we know we're not dreaming?
- can't trust our senses
- Deceit- we are deceived - is it the evil demon?
- The Cogito - must be something causing my doubt. This must be me. The fact I doubt implies I exist.
- "I think therefore I am..."
- Rene Descartes
- 1) We directly perceive SD
- Bertrand Russell
- 1) SD are private - no 2 people perceive the same thing
- unless we say there are physical objects which they both perceive indirectly.
- 2) Because of this, must be something more than sense data to explain the difference
- e.g. the appearance of a flower
- 3) Therefore, must be objects in a physical world. Seen differently because of perceptual variation.
- 1) SD are private - no 2 people perceive the same thing
- Features
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