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Gödel and the unreality of time

edwardfeser.blogspot.com

121–130 of 132 posts

Re: Gödel and the unreality of time

#121
post #54

Earlier quoted context omitted.

Cute, but I think there is a substantial difference between not born and dead.

What is that difference exactly?

Do you need it exactly, to know that it exists? What is the difference between two stars in the sky? Must you know the physical differences exactly to say they are different?

Re: Gödel and the unreality of time

#122
post #104

Earlier quoted context omitted.

It can value itself. After all, that's what it's doing now via us. It doesn't necessarily have to configure itself into something like a human to perceive and appreciate itself.

What is "it" when "it" is purely random noise? By definition and known physics, heat-death of the universe means there is absolutely no configuration.

Is the noise truly random, or is it just unpredictable? Does the maximization of entropy indicate no deviations from equilibrium will spontaneously occur? Does the lack of memory indicate a lack of consciousness?

Re: Gödel and the unreality of time

#123
post #121

Earlier quoted context omitted.

What is that difference exactly?

Do you need it exactly, to know that it exists? What is the difference between two stars in the sky? Must you know the physical differences exactly to say they are different?

What is the "substantial difference"?

Re: Gödel and the unreality of time

#124
post #121

Earlier quoted context omitted.

Do you need it exactly, to know that it exists? What is the difference between two stars in the sky? Must you know the physical differences exactly to say they are different?

What is the "substantial difference"?

Again, why would I have to be explicit/exact on it? Two stars in the sky have an obvious substantial difference between their existences. Even if I couldn't readily express what those differences are.

I mean, I get that these are fun discussions to have. Likely even meaningful. But the odd friction this is adding to enter the conversation seems overblown.

Re: Gödel and the unreality of time

#125

Earlier quoted context omitted.

> The idea of time being real or not raises the question of whether it's, a) always necessary to consider... Not really. Time could be real, and still not necessary to consider in all situations. I think this argument applies to your b) as well, but I'm less sure of that...

So to clarify, we can choose to use time whether it's real or not. The question is, given it isn't always applicable, and it may not always be necessary where it is partially so, are there situations where it causes paradoxes where it is a source of noise instead of information, and how can we know when applying it whether it causes one or the other? Godel as a logician would have approached it as just another formal…

I think your explanation is quite good. Assuming I understood you correctly, a shallow example might be a basic electronic circuit - a bulb, battery and switch connected in series. You could model the whole circuit without any concept of time even though the flow of electricity is not instantaneous.

Re: Gödel and the unreality of time

#126

Earlier quoted context omitted.

In this case the view in question (the B-theory of time) is supposed to be backed up by science: e.g., the Gödelian models in the OP, but, much more than that, the relativity of simultaneity. The RoS is really non-negotiable, and still entails that the actual world does not have a Newtonian absolute present.

While the RoS indicates that observers won't agree on the order of distant events, I don't think that it eliminates the possibility of an absolute present moment. You could simulate a system with relativistic physics just fine with a single global clock, just by adjusting the local simulation refresh rate to account for time dilation. Players might disagree on the order of events and the amount of time that had passe…

Right, that's interesting. Thanks. This is analogous to saying that we live in an Einsteinian simulation run from a Newtonian world, right?

Re: Gödel and the unreality of time

#127

Folks are asking about the practical import of time not passing---if indeed it does not. I know of this rather substantial one: my fear of death, and I guess that of other people too, depends on the notion that my own annihilation in time, and that of everything I care about, is absolute and definitive. Existence no longer has me as one of its inhabitants, and that's that. This picture is in its turn grounded on a pr…

“but it no longer feels like the absolutely unaceptable deal I used to think it was.” May I suggest this feeling has more to do with biochemistry than the philosophy? :-) In the sense that this can do with the hormonal level and the anxiety or anger that are controlled by it.

I think you are right. The philosophy is just in realizing the relevance of certain theories in physics to how death should be conceived. But then, yeah, psychology takes over :)

Re: Gödel and the unreality of time

#128
post #106
post #40

Earlier quoted context omitted.

There's one conception of self that I consider fairly constant, my ability to consciously perceive what's going on around me. Despite the fact that all of my body's cells get replaced completely every 7 years, _the fact that I perceive the world from "my" perspective remains constant_ Apart from that, I don't believe in a self. I assume, that when I die, this perspective goes away as well, I consider death to equal a…

Has your perspective ever changed? Have you ever had amnesia (loss of memory), or creation of false memory, via disease, injury, inebriation, or anesthesia? 99.99% likely you have.

It definitely has, I wanted to include the word "permanent" in my definition, but thought it'd be a bit much. I've experienced blackouts, extremely deep sleep (where you go to sleep and feel like you wake up a second later, even though 8 hours have passed) and driving on autopilot, where your consciousness just goes away completely, and you find yourself 10 minutes closer to your destination, as if you've teleported.

I'm not saying my conscious perception is constant, but if you plot consciousness as a binary variable on a graph (conscious, not conscious), a lifetime would look something like this, relatively constant.

    Before birth               Birth                 ..... life ......                 death
    .............................~~--------------------------------------.------------------................

    . = not conscious
    ~ = ..?
    - = conscious
And I'd argue that during dreams you're conscious too, you just forget about it, this claim is supported by contemporary research on sleep and dreaming for as far as my pop-psychology knowledge goes.

Re: Gödel and the unreality of time

#129
post #107

Earlier quoted context omitted.

> _the fact that I perceive the world from "my" perspective remains constant_ That's only your perception because you have memory. If we copied your memories right now and put them in a robot body 3000 years from now, it would also have the illusion of a single continuous perspective.

And that robot would be me.

What if we put "me" into 2 robots? What if one robot "killed" the other "me"?

Re: Gödel and the unreality of time

#130

Earlier quoted context omitted.

While the RoS indicates that observers won't agree on the order of distant events, I don't think that it eliminates the possibility of an absolute present moment. You could simulate a system with relativistic physics just fine with a single global clock, just by adjusting the local simulation refresh rate to account for time dilation. Players might disagree on the order of events and the amount of time that had passe…

Right, that's interesting. Thanks. This is analogous to saying that we live in an Einsteinian simulation run from a Newtonian world, right?

I prefer to imagine we exist in a roughly newtonian program, but the computer executing it is a distributed system with finite local resources, so it doesn't all run in sync.
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