What is direct realism?
Common sense view: objects exist independent of perceiver. We’re directly aware of them.
For: intuitive. Natural.
What is the argument from illusion?
Basic: One has illusory experiences, qualities that don’t exist; same account in illusory or veridical; one never aware of physical object.
P1-7. Key=P4 (same account must apply in both veridical and illusory experiences).
How might we respond to the argument from illusion?
- Challenge P4. Adopt disjunctivist analysis (cf. seeing queen, dreaming queen).
Obj: only need possibility of deception.
Obj: hallucinations indistinguishable. - Only doubt in extreme circumstance (cf. holography student, bad lighting).
Obj: only need logical consistency.
What are sense data?
What we’re aware of is non-ordinary, non-physical object.
Cf. bent stick in water.
Outline 3 objections to sense data theory.
- Scepticism.
Obj: show non-deductively.
Rep: hume on induction.
C. Obj: IBE
2: physical objects essentially invisible.
Obj: we experience some of the qualities.
3: where are sense data located?
Brains/object’s location/appear to be.
Obj: occupy own phenomenal space.
