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Ben Thomson: "there may not be a significant paradigm shift on the horizon" https://stratechery.com/2020/the-end-of-the-beginning/ … which I read thanks to https://gertjanvanderwel.com/ . Is there nothing left after mainframe, pc, laptop, and smartphone? Is this it!?
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Read more on this blog: http://www.douglas-self.com/MUSEUM/COMMS/airclock/airclock.htm …
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Einstein's clocks, Poincaré's maps by Galison contains a lot of info on tech at around 1880. Did you know clocks were coordinated using compressed air? Electrification of time had yet to come!pic.twitter.com/tfjMbNuFR8
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Anne van Rossum ⌘ proslijedio/la je Tweet
An Opinionated Guide to ML Research: “To make breakthroughs with idea-driven research, you need to develop an exceptionally deep understanding of your subject, and a perspective that diverges from the rest of the community—some can do it, but it’s hard.” http://joschu.net/blog/opinionated-guide-ml-research.html …pic.twitter.com/fyO6cyr9im
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There are many more that can be found in optimization theory. I think Lee Smolin would/should like to read up on computer science rather than - kind of - bash it.
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Positions depending on momentum and momentum depending on position is nothing special. A common "dual estimation" problem such as Simultaneous Localization and Mapping (SLAM) in robotics.
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Einstein's Unfinished Revolution (Smolin, p262) is a bit quick on "dual equations" being restricted to physics. Even worse that computer analogues are therefore unhelpful.
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However, if our universe on a macroscopic level is a causal loop it doesn't tell us much over the microscopic level. Even if there are a lot of loops, there are still even more events caused by something in the "past" than the "future" of the large loop we're in.
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(nitpick: I mean the father of your father, before your father was born)
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Time travel is then possible, theoretically, paradoxical time travel is not. If you would be able to shoot your grandfather, that world cannot come "into existence".
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How it's possible that we live in such a "rich" causal loop? Somehow all grains of sand, all fallen leafs, are like sequences of digits in a transcendental number. Is this superdeterminism?
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Smaller loops can exist as well. As long as the annihilation of the particle does not contradict its creation.
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What if it is completely the opposite? The only events that can arise are the ones that are "consistent" in the following sense. A causal loop can be arbitrarily "big". The universe exists because it causes itself.
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Causal set theory by Rafael Sorkin looks interesting. A condition: an event is never its own cause.
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Perhaps we haven't studied such types of symmetries enough.
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Symmetries of "configurations", say molecular structure in chemistry, to symmetries "across scales", such as fractals do not seem to require such a "background".
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I was triggered by Smolin's statement that symmetries are always defined by something "external". That sounds only true for rotation, translation, etc.
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Down the rabbit hole after reading Smolin. Found an article studying fractal differential equations and postulating an analogue for Noether's theorem (on fractal sets).https://www.researchgate.net/publication/332903299_Analogues_to_Lie_Method_and_Noether's_Theorem_in_Fractal_Calculus …
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The best startup to work for! :-)https://twitter.com/CrownstoneRocks/status/1220274447292100608 …
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