tag:blogger.com,1999:blog-8148573551417578681.post9174792071131042196..comments2023-09-20T17:12:58.719-07:00Comments on Dark Buzz: Mermin defends Copenhagen InterpretationRogerhttp://www.blogger.com/profile/03474078324293158376noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-8148573551417578681.post-32865487472424845402018-09-23T21:31:55.417-07:002018-09-23T21:31:55.417-07:00Found another fantastic skeptic quote, I'm fon...Found another fantastic skeptic quote, I'm fond of collecting them as they breath fresh sanity into a mentally constipated world:<br /><br />"There is no more common error than to assume that because prolonged and accurate mathematical calculations have been made, the application of the result to some fact of nature is absolutely certain."<br /><br />A.N. WhiteheadCFTnoreply@blogger.comtag:blogger.com,1999:blog-8148573551417578681.post-46743764002853792712018-09-23T12:09:41.313-07:002018-09-23T12:09:41.313-07:00Quantum mechanics is the least successful theory o...Quantum mechanics is the least successful theory of all time: "the only exact solutions to the Schrödinger equation found so far are for free-particle motion, the particle in a box, the hydrogen atom, hydrogen-like ions, the hydrogen molecular ion, the rigid rotator, the harmonic oscillator, Morse and modified Morse oscillators, and a few other systems [2,3]. For more complicated systems, however, approximation techniques have to be used (such as the variational method or perturbation theory), which sometimes give poor results compared with experimental ones, and practical calculations with them are usually very difficult, even with the use of powerful computers [4]. The difficulty is that in a system made of N interacting particles (where N can be anywhere from three to infinity), the repeated interactions between particles create quantum correlations. As a consequence, the dimension of the Hilbert space describing the system scales exponentially in N. This makes a direct numerical calculation of the Schrödinger’s equation intractable: Every time an extra particle is added to the system, the computational resources would have to be doubled [5]."<br />https://arxiv.org/ftp/arxiv/papers/1301/1301.0002.pdf<br />https://www.sciencedaily.com/releases/2017/03/170315115118.htmMD Coryhttps://www.blogger.com/profile/05342743632013663077noreply@blogger.comtag:blogger.com,1999:blog-8148573551417578681.post-23193216265881661972018-09-23T11:57:06.315-07:002018-09-23T11:57:06.315-07:00Physics has gone nowhere. It's in the last of ...Physics has gone nowhere. It's in the last of its funding hay days. Boring answers and even more boring applications.MD Coryhttps://www.blogger.com/profile/05342743632013663077noreply@blogger.comtag:blogger.com,1999:blog-8148573551417578681.post-18078961456293575772018-09-22T16:31:10.063-07:002018-09-22T16:31:10.063-07:00"There is only an abstract quantum physical d..."There is only an abstract quantum physical description." <br />This is basically an admission that QM as presently formulated is not about describing 'reality', it is about using a mathematical 'abstraction' that gives you useful answers with little understanding of how.<br /><br />This can be also seen in the following sentence:<br /><br /> "It is wrong to think that the task of physics is to find out how nature is."<br /><br /> "Physics concerns what we can say about nature." <br />You could apply this attitude towards epicycles. Hey, they have nothing to do with actual planets or how they move, but what the hell, the answers are useful. So much for reality.<br />CFTnoreply@blogger.com