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William Hobba

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About William Hobba

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    Junior Member

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  • Real Name
    Bill Hobba
  • Copyright
    Public Domain
  • Biography/Intro
    Interested in why the world is as it is. Have fond partial answers in Quantum Mechanics and Symmetry
  • Experience with Objectivism
    Read a lot on it when young. Now reading The Passion Of Ayn Rand
  • School or University
  • Occupation
    Retired computer programmer

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  1. Interesting take. Would the Turing test now being passed make any difference? https://www.bbc.com/news/technology-27762088#:~:text=The 65-year-old Turing,London that it was human. Thanks Bill
  2. Interesting view. We do not know if the laws that govern the world are simple or not, but modern physics has shown the importance of symmetry. This is part of the work of a very remarkable woman, IMHO as remarkable as Ayn Rand was, whose story is not as well known as it should be: https://www.discovermagazine.com/the-sciences/how-mathematician-emmy-noethers-theorem-changed-physics. She fought against terrible misogeny, but her genius could not be denied, and is generally considered one of the top 20 mathematicians of all time - quite possibly top ten. She was not even allowed t
  3. There is nothing to reconcile. Even if the world is totally deterministic, because of the phenomena of chaos (ie any lack of knowledge of initial conditions, no matter how small, will always grow, so eventually any prediction made is wrong), it means there is no way to make use of that determinism. You may want to argue - that is just a practical objection - I am speaking of matters of principle. It is often said QM is fundamentally probabilistic. That it must be is incorrect - the DBB interpretation is perfectly deterministic - but because the laws of QM do not allow knowledge of all
  4. Replying to the original question, two physicists have an interesting take: https://www.sciencealert.com/quantum-complexity-rules-out-our-universe-as-a-computer-simulation People here might find it interesting. Just as an aside, while the above looks fine, in general beware of popular articles discussing Quantum Mechanics - many are to be blunt total BS. If you really want to know about QM get Susskind's book: https://www.amazon.com.au/Quantum-Mechanics-Theoretical-Art-Friedman/dp/0465062903 Thanks Bill
  5. Everybody has studied Euclidian Geometry at school. That is reason laid bare. I will not go deeper into it - you can do that yourself and make up your own mind if you agree with what Ayn Rand says or not. I have my own views, very close to Ayn Rand's - but not quite the same - I call it a modelling perspective. But geometry contains the essence of it. What you figure out for yourself, using of course discussions, readings etc as pert of the process, you always understand better. Thanks Bill
  6. I didn't realise my little post had generated so many further replies. I thought the original answer I got was satisfactory so didn't pay any more attention to the thread until now. But to add further context, the Feynman Lectures are very famous textbooks in physics - although written for freshman students, is not generally recommended as a text for such a course, but nearly universally recommended as supplementary reading for the serious thinking student - the one that wants to go beyond the usual textbooks that are more about passing the final exam. In the opening chapters he discusse
  7. Sometimes. I remember being forced to read 1984 at school. When asked for my comment I said it was silly - you would have to be nuts to let a world like that come about in the first place. How silly I was - the thought police today with things like gender dysphoria, a psychiatric condition that needs treatment by professionals, as a guiding principle, are even worse. I occasionally joust with them on twitter, and about the only reasoning method they know is the ad-homenem attack. When I point out can't you be more creative and at least come up with a logical fallacy other than the m
  8. What was it Hilbert said, and had engraved on his gravestone - 'We must know. We will know.'. You are a sentient human being - it follows directly from that. Thanks Bill
  9. Ever see the series 7 up? At 28 when they look back at their younger self's they wince. My father was a communist when young but later saw the light. Young people often realize how silly the ideas they hold when young, mostly just picked by a sort of cultural osmosis, really have no basis. Thanks Bill
  10. What would Ayn Rand say to what Feynman said in his famous lectures 'We can’t define anything precisely. If we attempt to, we get into that paralysis of thought that comes to philosophers… one saying to the other: you don’t know what you are talking about! The second one says: what do you mean by ‘talking’? What do you mean by ‘you’? What do you mean by ‘know’?' Thanks Bill
  11. Hi All There is a very important theorem discovered by the greatest mathematician who you probably never heard of, Emmy Noether, that says something very profound about nature. I have chatted to philosophers about it but they seem totally unaware of it, or as an aside the struggle this great mathematician had to endure because she was a woman. I know of a professor who teaches this stuff to math and physics students. The class reaction is always the same - stunned silence as its importance sinks in. But it doesn't seem to hold the same sway in philosophy departments. Also what wo
  12. As said plainly and clearly in the links I gave. Here is the exact logic. The links I posted says - and I quote - ' but belches are actually the primary source of cattle-produced methane, accounting for 95 per cent of the problematic greenhouse gas'. The first article said the total is 18%, but the second said it has been upgraded by 11%. This gives (.18 x 1.11) X .95 - about 19% - so if you want to argue 1% I will give you that. Your arguments about managed grasslands etc are beyond my competence - I accept them as true but do not really know. However I am very confident in my math,
  13. As I quoted: 'We typically think of farts as being the culprit, but belches are actually the primary source of cattle-produced methane, accounting for 95 per cent of the problematic greenhouse gas. So Belching does account for 95% of the emissions. And the second link showed the original amount of 18% in the first link was now thought to be lower than the real amount by 11% giving the 20%. You said: 'What I said above, in a nutshell, is this: pasture that is managed according to regenerative principles sequesters more carbon in the soil than a typical temperate climate forest (like
  14. No - eg Dyson has his credibility of course. So does Gell-Mann, but he has a different view. He says correctly the trend has a component that is random, cyclical caused by things like sunspot activity, and the actual warming caused by the emissions. It exasperates him people do not get this. He didn't say so but you get the impression until people understand this, and scientists know better how much each will contribute, why are we arguing it? But he does think the emissions will eventually predominate - but when - your guess is as good as mine - and the effect - Dyson thinks it could b
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