tag:blogger.com,1999:blog-8334018989882702842.post8994583532598328522..comments2024-01-12T23:22:31.704-08:00Comments on relativistic observer: Thinking BackwardsMarkhttp://www.blogger.com/profile/05314130812566991108noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-8334018989882702842.post-67722135756233968532022-03-27T05:55:03.553-07:002022-03-27T05:55:03.553-07:00Dhankesari Lottery Result today is updated on the ...Dhankesari Lottery Result today is updated on the above side of this page and you can download Dhankesari Lottery Result today. Dhankesari lottery is one of the most famous lottery across India. Dhankesari lottery ticket buyers are increasing day by day. As you know, the Dhankesari state lottery draw is scheduled three times as (Dhankesari Morning) 11:00 AM, (Dhankesari Day) 4:00 PM &(Dhankesari Night) 8:00 PM.<br /><a href="https://dhankesariresults.in/dhankesari-lottery-result-11-55-am.html" rel="nofollow">https://dhankesariresults.in/dhankesari-lottery-result-11-55-am.html</a><br />williamshttps://www.blogger.com/profile/07151962649611976121noreply@blogger.comtag:blogger.com,1999:blog-8334018989882702842.post-22140640741370920552012-05-01T00:45:42.419-07:002012-05-01T00:45:42.419-07:00"Sound is really very one-dimensional"
..."Sound is really very one-dimensional"<br /><br />I don't get this. Any sample of sound is dependent on the environmental variables (chamber acoustics, transducer Q, etc), which are infinitely variable.<br /><br />"imperfections of the recording such as room echo"<br /><br />What is the perfect reference point?<br /><br />Isn't all relative to the observer's preference.<br /><br />"reversed time is a creepy place"<br /><br />Agreed, it is very challenging for us to adapt outside of our established comfortable perceptions.<br /><br />Single level undo is not so creepy. But unlimited undo can be incoherent in some scenarios, and especially selective ancient undo.<br /><br />Perhaps it is the illusion of control we don't want to give up. The expansion of possibilities is something we don't face when we choose how much we deviate from the things we think will be reproducible. But this is a delusion, c.f. Handling Serious Events blog and my latest comment in the Transparency blog about the illusion of housing net worth.<br /><br />Your blogs Mess and Creativity and Different Modes of Thought relates in that we embrace random exploration to find new frames of reference. I definitely lean to the random thought process exploration (deconstruction), but I do try to come back and solidify with some ordered quantification (reconstruction).shelbyhttps://www.blogger.com/profile/04192118408905938326noreply@blogger.comtag:blogger.com,1999:blog-8334018989882702842.post-72243757612743407992012-04-30T23:52:45.887-07:002012-04-30T23:52:45.887-07:00Sound is really very one-dimensional, compared to ...Sound is really very one-dimensional, compared to video. So it has a very simple forwards-backwards aspect. And it's cool how pitch is preserved.<br /><br />For me, backwards recording is really a creative outlet, because it sounds cool. So I don't really stop to think much about the causality of it. Nor do I think much about the loss of information, except when considering the imperfections of the recording such as room echo etc.<br /><br />When I record against a backwards audio clip, I realize that reversed time is a creepy place. I don't think I would want to live there. I think it's the only experience I will ever have with reversed time, really. I have reversed videos and I also get a strange experience. It's totally outside our frame of reference.<br /><br />But that doesn't mean we can't think about what it means.<br /><br />I have often thought of 1-to-1 image functions as being time reversible and thus a possible useful crypto system. Perhaps this relates to coinduction.Markhttps://www.blogger.com/profile/05314130812566991108noreply@blogger.comtag:blogger.com,1999:blog-8334018989882702842.post-36099382565876801152012-04-30T11:53:51.977-07:002012-04-30T11:53:51.977-07:00See also my comment in your Energy 1 blog.See also my comment in your Energy 1 blog.shelbyhttps://www.blogger.com/profile/04192118408905938326noreply@blogger.comtag:blogger.com,1999:blog-8334018989882702842.post-52448357047363532262012-04-30T11:51:38.940-07:002012-04-30T11:51:38.940-07:00Some rambling thoughts...
Recording a sound disca...Some rambling thoughts...<br /><br />Recording a sound discards infinite amounts of information, e.g. we didn't have a microphone at every possible axis, distance, polar sensitivity variant, etc.. So we are replying an aliasing version of history.<br /><br />Our perception of the present is also aliased for the same reason, that our sampling rate is not infinite. Two observers can perceive a different simultaneous reality. A transducer (or transformation) between realities (perceptions) can turn mutual noise into mutual signal.<br /><br />The uncertainty is introduced when we want coherence (resonance) between mutual observation. Degrees-of-freedom (potential energy) is relative to the mutual perspectives in play.<br /><br />If I remember correctly, an inductive type or algebra is constructed from an initial condition in the past with the future open-ended, and a coalgebra or coinductive type is constructed towards a final condition in the future with the past open-ended. An example of a coinductive type is a stream, where the known future final condition is when the stream is deconstructed (closed).<br /><br />If travel backwards in stream time, we have to worry about coherence with other events in the past.<br /><br />If you actually spoke the words of a song backwards, the physics of the environmental would probably be altered so that just playing one possible recording backwards is incoherent with what could be modeled by multiple observers of a real backwards event.<br /><br />The reversibility of time is thus an instance of a limited mutual coherence, which is really a forward event in time. But forward reality is also a limited mutual coherence. Thus the perception of the direction of time is a limited mutual coherence. Ditto degrees-of-freedom.<br /><br />So maybe dark matter is the infinite alternative realities (perceptions) that are only coherent to our current shared perception of the universe, at the gravitational event horizon. What I mean for example, is that I can't perceive everything that you do every instant of the mutual notion of forward time we share, so that information (a form of matter) is only visible to me at the gravitational event horizon, where you also perceive mine.shelbyhttps://www.blogger.com/profile/04192118408905938326noreply@blogger.comtag:blogger.com,1999:blog-8334018989882702842.post-9676801718722307402012-04-29T10:32:07.459-07:002012-04-29T10:32:07.459-07:00Although it is a tiny bit convoluted, DeMorgan'...Although it is a tiny bit convoluted, DeMorgan's law does make sense to me. And I figured it out before I took that course on Discrete Math. This happened one evening at Calma over a logic simplification problem.<br /><br />I suppose this is one of the reasons I program.Markhttps://www.blogger.com/profile/05314130812566991108noreply@blogger.comtag:blogger.com,1999:blog-8334018989882702842.post-59997808002520101092012-04-29T10:30:07.633-07:002012-04-29T10:30:07.633-07:00It is because of the Second Law of Thermo that it ...It is because of the Second Law of Thermo that it takes so much work to trace a chain of causality backwards. Often the clues are eradicated by the noise of possible consequences.<br /><br />When programming, we are keeping a pact with our code, at least we are attempting to establish one. When we make mistakes and the pact is no longer kept, then things break, even degrees of freedom.<br /><br />There is lots of work that considers time-reversibility. Let me just say that brainpower can look backwards into time with uncertainty which is exponential in the number of steps we wish to probe. We can use concepts of likelihood (Occam's razor and Bayesian methods) to increase our certainty and bring past events into greater focus.<br /><br />When recording sound, time-reversibility is a curious capability, since we would have very little understanding if it weren't for our ability to record stuff and play it backwards. This can open our minds to the concept of backwards flow, that really does not exist in any reference frame in the real universe.<br /><br />Singing back to a time-reversed sequence is spooky, almost as spooky as the action at a distance of quantum entanglement. Some things are not natural, but we can get used to them because we have an incredible tool that can even make sense of things that do not make sense: our minds.Markhttps://www.blogger.com/profile/05314130812566991108noreply@blogger.comtag:blogger.com,1999:blog-8334018989882702842.post-85029451184010408812012-04-29T09:32:23.671-07:002012-04-29T09:32:23.671-07:00I should have mentioned DeMorgan's Law and als...I should have mentioned DeMorgan's Law and also for other readers, much of that comes from a course in Discrete Math, as I am sure you know.shelbyhttps://www.blogger.com/profile/04192118408905938326noreply@blogger.comtag:blogger.com,1999:blog-8334018989882702842.post-37000775659545894932012-04-29T09:29:33.879-07:002012-04-29T09:29:33.879-07:00In math and programming theory, we have the dualit...In math and programming theory, we have the duality of concepts algebra and coalgebra, or inductive and coinductive respectively.<br /><br />In type theory (or sets), we have logical conjunction (union) and disjunction (intersection), or greatest lower and least upper bounds respectively.<br /><br />However, I have posited that w.r.t. to the World state, time is irreversible, because we can't enumerate the World state:<br /><br />http://copute.com/docs/Event.html#Modeling_Change<br />http://copute.com/docs/Event.html#Deterministic_Semantics<br /><br />(this brings us back to the discussion in the Future part 1 blog about infinity and 2nd law of thermo that possibilities/disorder is always increasing for the universe as a whole. My theory was the degrees-of-freedom is conserved on the universal scale, i.e. Coase's theorem that any local order that decreases the degrees-of-freedom will ultimately fail or be routed around. That doesn't mean that local orders and their reversibility is useless, and it is even possible some cases increase the degrees-of-freedom on other considerations such as creativity and thus be long-lived paradigms).shelbyhttps://www.blogger.com/profile/04192118408905938326noreply@blogger.com