tag:blogger.com,1999:blog-6923947282926324208.post2543791518255108953..comments2018-06-11T16:16:53.042+02:00Comments on Entropic and Fractal Intelligence: Retrocausality and AIAnonymousnoreply@blogger.comBlogger2125tag:blogger.com,1999:blog-6923947282926324208.post-1913108272045233942018-02-26T18:15:05.412+01:002018-02-26T18:15:05.412+01:00correction: "entropy always INCREASES" i...correction: "entropy always INCREASES" in that particular sentenceScott Robertshttps://www.blogger.com/profile/03727573717462028189noreply@blogger.comtag:blogger.com,1999:blog-6923947282926324208.post-64686717480286741052018-02-26T18:13:40.124+01:002018-02-26T18:13:40.124+01:00The article states retrocausality is the result of...The article states retrocausality is the result of the arrow of time that prevents time from being symmetrical.Physical laws are time-symmetrical, but that does not mean time itself is symmetrical. If you run time backwards I believe you have to negate the sign on all charges. (A positron is an electron going backwards in time.) I believe this is part of what's called CPT symmetry (a combination of C, P, and T is symmetrical, not the individual quantities). Feynman pointed out in "Character of Physical Law" that time is not symmetrical because the universe is expanding. The article refers to thermodynamics as why time is not symmetrical, but the 2nd law is not "entropy always decrease". Feynman discussed this in his lectures. This incorrect law is only true for an isolated system and there is no such thing as an isolated system due to black body radiation. It's just an engineering approximation. Feynman gives the precise statement. So I think a more correct 2nd law is "entropy is always emitted". I view the expansion of the universe as going hand-in-hand with the extraction of entropy out of gravitational systems, as those systems emit energy as photons. There is no heat transfer on cosmological scales by theory and experiment, and entropy is always conserved. So each solar system and galaxy must be going a reduction of entropy. Maybe mass contains a normally-ignored entropy. The entropy of the universe is constant on a co-moving volume basis (which is a volume that expands with the Universe). This shows that on a fixed-volume basis (such as solar systems), entropy is decreasing. So the idea that retro-causality is the yin to causality's yang has a lot of support via CPT symmetry and a cosmological view of constant entropy.Scott Robertshttps://www.blogger.com/profile/03727573717462028189noreply@blogger.com