What is knowledge? How are our perceptions related to reality? Epistemology revision Overarching Key Positions question Naïve realism December 2014 Key Vocab & Arguments For Philosophers Russel “common sense” Veridical pre-philosophical viewpoint perception language implies this Subjectively relationship indistinguishable Indirect Realism Sense data Locke Primary & secondary qualities Idealism Sense data is caused by and represents the external world Arguments Against Perceptual variation Time lag Illusion Hallucination & dream Solipsism as a result? Inseparability of primary and secondary qualities Differing nature of primary and secondary qualities Master argument Arguments against indirect realism Plato Justification : racist juror Necessity & Truth : Raquel and the Flat sufficiency earth Scientific method Belief : “I don’t believe it – I know it” etc Weaknesses on ‘arguments’ p/point “no false lemmas” Infallibilism Descartes Almost no knowledge survives radical doubt Reliabilism tracking Tripartite Definition Berkeley Esse es percipi Avoids ‘lucky truth’ Gettier examples : JTB without knowledge. Eg “12 o’clock in town” based upon a broken clock Infinite lemma network? Reliable = tracks truth