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Why the Flow of Time Is an Illusion

nautil.us

111–120 of 195 posts

Re: Why the Flow of Time Is an Illusion

#111

I love these discussions, they make my brain hurt in a good way. However, I've trouble applying them to daily life. Is there something we should change in ourselves because of these new insights?

I don't think you really have to apply these things to your daily life. It is merely a question of _why_ is it that you feel time in your daily life like you do. It's as much of a question of philsophy as it is a question of physics.

Re: Why the Flow of Time Is an Illusion

#112
post #26

Earlier quoted context omitted.

What would magicians do without illusions, mere tricks, that's what. Shame on you.

The association of the word with mystery in particular doesn't help to bring clarity in discussions with a scientific context. If I said "semiconductors are an illusion", "programming is an illusion" etc. it doesn't contribute any information. It just confuses.

But if one said magicians use sleight of hand to fool the brains of audience members into the illusion that magic has been performed, then why doesn't that bring clarity? Illusions are perceptual errors the brain creates when misinterpreting data from the senses, often because of some unusual condition in the environment.

This idea has been extended to say things like reality could be an illusion (Matrix scenarios), or something we take to be fundamental to reality such as the flow of time could be an illusion, in that our mental experience of it is misleading us into thinking it's fundamental.

That we can be fooled by our experience of the world is not controversial. People thought the world was flat and that the moon and sun rose around a still Earth, which was the center of the cosmos. Because that's how it appeared to them.

Re: Why the Flow of Time Is an Illusion

#113

Earlier quoted context omitted.

> as exactly zero other things in the universe that we studied since the dawn of humanity turned out to be magic. Rather, the things that seem somehow magical to us we either explain scientifically, or we ignore. I don't know about you, but several of my acquaintances have reported phenomena and experiences that I have no reason to doubt, that are not solely 'in their mind' (because of the external consequences of wh…

> I don't know about you, but several of my acquaintances have reported phenomena and experiences that I have no reason to doubt, that are not solely 'in their mind' (because of the external consequences of what happened), and that cannot be explained by mechanistic laws because they involve 'backwards' transfer of information and so on. I have those too, and no offense to you personally, but I call bullshit on both…

> I have those too, and no offense to you personally, but I call bullshit on both mine and your acquaintances. In case of people I know, there was not one situation for which I couldn't find a more plausible explanation - which usually boils down to that for enough trials, even the rare coincidences sometimes happen.

Fair enough - this 'statistical argument' is a convenient explanation that can always be invoked, but in this case I don't really consider it to be very satisfactory as an explanation of the phenomena I have been told about (I would put the likelihood for something like those phenomena to happen 'by chance' to be so abysmally low that it seems impossible).

> There is this one reason that it's literally the job of science. Science isn't a bunch of fixed methods from a holy book, it's the aggregation of everything that reliably works for extracting information about observable reality.

I disagree. "Science (from the Latin word scientia, meaning "knowledge") is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.". This is far from saying 'science can answer any question'. But again, you're free to believe that science can do that. I just don't happen to believe it can.

> But is it? The hint is given by the fact that there's more than one thinking human in existence. You may feel that answers about your subjective experiences are out of reach of science, but to the extent subjective experiences have any impact on reality, you can use science to study my subjective experiences (as expressed by me), and I can do the same to you.

I think your answer to the other thread makes it clear that we have some insurmountable philosophical differences here. If you believe that showing the correlation between a configuration of atoms and the subjective experience that accompanies that configuration to be 'an explanation' of that subjective experience, we have very different expectations of what constitutes an explanation.

Re: Why the Flow of Time Is an Illusion

#114
post #101

Earlier quoted context omitted.

What do you mean by "exist intrinsically"?

There being a subjective perspective, having qualia, sentience: https://en.wikipedia.org/wiki/Sentience

I think the last step to feeling a sensation is knowing that you felt it. To know that you felt a sensation, the act of feeling itself needs to feedback as a sensation.

I don't think you need a well developed sense of self or philosophy of mind to be conscious. But I think from a systems point of view, the mind needs to be self sensing.

Re: Why the Flow of Time Is an Illusion

#115

Earlier quoted context omitted.

Why would we need to 'feel' anything from the inside? We could operate perfectly well as 'machines' without having this 'feeling'. Also, consciousness isn't a feeling. It is what makes it possible at all to have a subjective experience of feelings in the first place. And that is mind-blowing the more you think of it.

Consciousness is the algorithm. What you call "consciousness" is how the computational processes that are you see themselves. It could work differently, but for some reasons it doesn't, and we don't understand the reasons.

I find kabbalah very interesting, because this assertion has been made for a long time without us having something tangible to compare it to. Now we have computers, basic AI, and no signs of slowing down. What if kabbalah, or something similar, is actually how consciousness emerges across different types of observers? I.e., consciousness is a "most likely" pattern that emerges from the initial ability to conceive of time.

Tarot is an example of a more personified version of the same archetypal phenomenon. The first few cards are indicative of susceptibility to experience, concentration of experience, awareness of experience, multiplicity of experience, and mastery of experience.

Re: Why the Flow of Time Is an Illusion

#116

The Order of Time by Carlo Rovelli ( https://www.amazon.com/Order-Time-Carlo-Rovelli/dp/073521610... ) is an amazing and eye opening book on the topic of time. Carlo, a theoretical physicist who specializes in quantum gravity, slowly peels back the layers of the conceptual onion to get to some pretty strange fundamental truths about time. As a side note, the Audible book is read by Benedict Cumberbach and is a deligh…

This book is a MUST READ imho. I heard him pitching the book on KQED Forum, he seems quite a pleasant, amiable fellow.

Books like this deserve a re-read at least once. Now I know to do the audible for round 2 in a few years.

Re: Why the Flow of Time Is an Illusion

#117
post #49

Earlier quoted context omitted.

The problem with that line of reasoning is you're assuming the brain is a computer, or that it merely computes. But that's just an assumption and there are many reasons a person, let alone a brain, is not a machine or a computer or an algorithm. That it is like it? Sure, in some insignificant ways, we have the ability to compute things. But is it an algorithm? No. The idea that consciousness is an algorithm or a comp…

> The problem with that line of reasoning is you're assuming the brain is a computer, or that it merely computes. The brain can compute. That's extraordinary. I say one type of thing does that, computers. You say no, two things, computers and then also brains. But when pressed to explain what is a brain if not a computer you'll just sputter (probably at length) without offering any substance. In a sense that's the wr…

Not so extraordinary. What's extraordinary isn't that brains can compute, it's that anything else can. Brains computing is ordinary. What's extraordinary about the brain isn't that it can compute. What's extraordinary about the brain is that it can be rational and self-aware, things that computers cannot do. Computers can only be deterministic. Brains can be deterministic, but they can also be non-deterministic

Re: Why the Flow of Time Is an Illusion

#118

I find this quote fascinating: "What I think that means is there is no holy era of time. It emerged. If, in the distant future, we find ourselves in a universe where all the stars have burned out, and all the black holes have evaporated, and all the radiation has been diluted by the dark energy that expanded our universe, and all we have is some very cold bath of photons here and there—basically thermal equilibrium;…

That same quote confuses me. If there are no events to measure time, why does that mean that time stopped? Can't it keep flowing just as space keeps expanding regardless of measurement? More so, photon decay is not completely ruled out yet, so events could keep happening in that cold photon bath.

Re: Why the Flow of Time Is an Illusion

#119

I find this quote fascinating: "What I think that means is there is no holy era of time. It emerged. If, in the distant future, we find ourselves in a universe where all the stars have burned out, and all the black holes have evaporated, and all the radiation has been diluted by the dark energy that expanded our universe, and all we have is some very cold bath of photons here and there—basically thermal equilibrium;…

I think it’s quite the stretch. By the same token, if I let my coffee thermo reach thermal equilibrium and don’t touch it, can I claim I’ve built a machine that stops time?

No, the rest of the universe could still effect that coffee externally. A universe at thermal equilibrium would encompass everything (which naturally also means there could not be anyone or anything around to measure anything either)

Re: Why the Flow of Time Is an Illusion

#120
I liked the example of water spilling onto the floor. I was trying to explain this point to my 7-year old the other day. As crazy as it sounds, the laws of physics don't say that the water couldn't jump off the floor and back into the bottle. The laws of physics are equations and equations are equally true if you reverse the left and right sides. In terms of the equations, that water in the bottle equals the water on the floor (along with the increase in heat energy and other effects), so there's no fundamental physical reason you can't go from one to the other. The reason why you don't ever see it is because it is astronomically less probable to happen in reverse.
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