PHILOS 2 Lecture Notes - Lecture 5: Cryogenics, Temporal Paradox, Logical Form
Document Summary
Philos 2 lecture 5 time travel paradoxes. Lectures (time going by very slowly), dateline (plane rides and different time zones), coma (waking up after several years), cryogenics (freezing head and waking up after hundreds of years) Doctor who (travels back or forward in time in his tardis, he observes ten minutes passing), Leap (travels back or forward in time with special device, instantaneously appears at destination time) Time travel into past mathematically possible (through these closed causal loops), (cid:271)ut due to st(cid:396)u(cid:272)tu(cid:396)e of spa(cid:272)eti(cid:373)e f(cid:396)o(cid:373) ge(cid:374)e(cid:396)al theo(cid:396)(cid:455) of (cid:396)elati(cid:448)it(cid:455), it does(cid:374)"t allo(cid:449) for this. Ex: hollywood celebrities being compared to older pictures of people many decades before, looking exactly the same. What is time travel: time traveling: time it takes from departure to arrival of destination (time elapsed) does not equal duration of the journey. Ex: jou(cid:396)(cid:374)e(cid:455) takes a(cid:374) hou(cid:396) of pe(cid:396)so(cid:374)al ti(cid:373)e (cid:894)ti(cid:373)e o(cid:374) t(cid:396)a(cid:448)ele(cid:396)"s (cid:449)(cid:396)ist(cid:449)at(cid:272)h(cid:895)
