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- Jul 2022
let me comment on your quantum physics i have only one objection please i think it's uh uh it's 01:01:21 what you said about the two uh sort of prototypical uh quantum puzzles which is schrodinger the double slit experiment uh it's uh it's perfect um my only objection is that in my book 01:01:34 i described of course i had a chapter about schrodinger cat but i don't use a situation in which the cat is dead or alive 01:01:46 i prefer a situation in which the cat is asleep or awake just because i don't like killing cats even in in in in mental experiments so after that 01:01:58 uh uh replacing a sleep cut with a dead cat i think uh i i i i completely agree and let me come to the the serious part of the answer um 01:02:10 what you mentioned as the passage from uh the third and the fourth um between among the the sort of the versions of 01:02:25 wooden philosophy it's it's exactly what i what i think is relevant for quantum mechanics for this for the following reason we read in quantum mechanics books 01:02:37 that um we should not think about the mechanical description of reality but the description reality with respect to the observer and there is always this notion in in books that there's observer or there are 01:02:50 paratus that measure so it's a uh but i am a scientist which view the world from the perspective of 01:03:02 modern science where one way of viewing the world is that uh there are uh you know uh billions and billions of galaxies each one with billions and billions of 01:03:14 of of of stars probably with planets all around and uh um from that perspective the observer in any quantum mechanical experiment is just one piece in the big story 01:03:28 so i have found the uh berkeley subjective idealism um uh profoundly unconvincing from the point 01:03:39 of view of a scientist uh because it there is an aspect of naturalism which uh it's a in which i i i grew up as a scientist 01:03:52 which refuses to say that to understand quantum mechanics we have to bring in our mind quantum mechanics is not something that has directly to do with our mind has not 01:04:05 something directly to do about any observer any apparatus because we use quantum mechanics for describing uh what happened inside the sun the the the reaction the nuclear reaction there or 01:04:18 galaxy formations so i think quantum mechanics in a way i think quantum mechanics is experiments about not about psychology not about our mind not about consciousness not 01:04:32 about anything like that it has to do about the world my question what we mean by real world that's fine because science repeatedly was forced to change its own ideas about the 01:04:46 real world so if uh if to make sense of quantum mechanics i have to think that the cat is awake or asleep only when a conscious observer our mind 01:05:00 interacts with this uh i say no that's not there are interpretations of quantum mechanics that go in that direction they require either am i correct to say the copenhagen 01:05:14 school does copenhagen school uh talk about the observer without saying who is what is observed but the compelling school which is the way most 01:05:27 textbooks are written uh describe any quantum mechanical situation in terms okay there is an observer making a measurement and we're talking about the outcome of the measurements 01:05:39 so yes it's uh it assumes an observer but it's very vague about what what an observer is some more sharp interpretation like cubism uh take this notion observer to be real 01:05:54 fundamental it's an agent somebody who makes who thinks about and can compute the future so it's a it's a that's that's a starting point for for doing uh for doing the rest i was 01:06:07 i've always been unhappy with that because things happen on the sun when there is nobody that is an observer in anything and i want to think to have a way of thinking in the world that things happen there 01:06:20 independently of me so to say is they might depend on one another but why should they depend on me and who am i or you know what observers should be a you know a white western scientist with 01:06:32 a phd i mean should we include women should we include people without phd should we include cats is the cat an observer should we fly i mean it's just not something i understand
Carlo goes on to address the fundamental question which lay at the intersection of quantum mechanics and Buddhist philosophy: If a tree falls in the forest, does anybody hear? Carlo rejects Berkeley's idealism and states that even quantum mechanical laws are about the behavior of a system, independent of whether an observer is present. He begins to invoke his version of the Schrödinger cat paraodox to explain.