Live data from Hacker News

A delightful quirk of relativity theory

twitter.com

221–230 of 232 posts

Re: A delightful quirk of relativity theory

#221
post #209

Earlier quoted context omitted.

I believe this kind of response is exactly the defensive, strongly held belief sort as mentioned by OP. What, specifically, is not cogent about his argument? I think you'll find that if you think about it rationally, there really is no other conclusion without invoking mysticism.

I suppose I have two points. First is that while an argument is being made, absent subjective agency on his part he is no more than a candle flame illuminating the room. The candle once lit must illuminate - it cannot do anything else. And so I grant in the sense of a flame burns, he makes an argument - but without subjective agency, while an argument us being made I’m not sure what precisely we mean by he. Second ab…

The validity of an argument does not rest on the agency of the entity who made it. An argument put forward by a computer can be judged by its content just as much as an argument by some hypothetical entity with free will.

Your rejection on the basis of my claim that none of us have free will is logically unsound whether we have free will or not.

> Second absent free will, truth seeking has no more transcendent meaning or inherent value than a fly’s turd seeking. Love, wisdom, justice simply are, and are no better or worse than hate, ignorance or cruelty.

I agree with that. Nothing has any inherent meaning or value. The meaning or value in everything is merely the value we subjectively assign to it. That does not remove that value. The subjective experience is just as good or bad whether or not it's based on values we've merely assigned to it without any choice in the matter.

To me this notion that we need free will to value the feeling of freedom or the beauty of love, wisdom and justice is bizarre. The experience is the same whether or not the underlying choices are free or purely deterministic.

I'm a hard determinist, materialist, atheist, yet I spent a large portion of my youth writing goofy sentimental romantic poetry - the two are not in conflict; I can recognise love is a biochemical reaction following a chain of deterministic events and still feel it.

Re: A delightful quirk of relativity theory

#222
post #170
post #101

Earlier quoted context omitted.

> Personally I'm happy with other definitions, not because I feel I'm doing mental gymnastics, but because the version you give is clearly not what normal people mean by it when they refer to it. It might well be related to what philosophers argue about, but normal people who offer you a 'free choice' or who say that you did something 'of your own free will' do not mean anything like 'your choice was not a function o…

> if you genuinely believe the notion that we have free will is nonsense (and I do) Then you need to genuinely accept that you're not right, you're not making a cogent argument, you're just a fly buzzing around a giant turd. Or rather you don't, cause you can't.

You could of course try to actually put forward a definition of free will that is possible to defend which is not based on smoke and mirrors.

But you don't, cause you can't ;)

(and as the other response pointed out: this is exactly the kind of response I expect when I ask for definitions of free will, because the notion of it collapses rapidly when people try to define it)

Re: A delightful quirk of relativity theory

#223
post #216

Earlier quoted context omitted.

I think you've confused the argument. There is no denial that the subjective experience of free will is real, even to a free will denier. That is, we're not talking about qualia. See the distinction of 'hard' free will. So in fact there was no absence of subjective agency. But I get your point. You hold the belief that free will deniers are themselves automatons. A strange but expected reversal of conclusions--unders…

> There is no denial that the subjective experience of free will is real I guess I am loathe to throw something so essential and universal to the human experience out the window. I think many people get into verbal and philosophic contortions because like me they find it difficult to accept something which goes against their fundamental experience, and yet unlike me they're unable to let go of a materialist reduction…

But we're not throwing anything out the window. We agree the experience of free will is real.

I just don't agree that the underlying reality of it is that there's anything "free" about it any more than e.g. a movie character has free will.

Yet that movie character will still make choices within their movie world that matters to the character, even though the choices are all illusory, and even the characters existence is illusory.

(I'd go much further and argue that we can't tell if space or time has any existence independent of a single instant of sentience, but it doesn't matter - the only thing that matters is that we experience it as if it has; the fundamental defence of philosophical materialism against philosophical idealism is exactly that: it doesn't matter; we have to act as if reality is as we sense it, whatever we know or believe we know about it)

I don't see the contradiction. I don't go around living my life thinking that what I do don't matter because the choices aren't free. They feel real and feel free, and the consequences are real whether or not the choice was truly free.

The only thing it changes is perhaps how I look back at things, and some views on morality:

I try not to have regrets (I do sometimes, because whatever my views I can not override all feelings, and would not wish to anyway), because while I may wish I had acted differently, I am pretty good at accepting that I couldn't have. I can try to act differently in the future, and hope I actually will, but what happened in the past, happened.

At the same time I can feel angry about how someone else acts but recognise that while that may inform how I act around them in the future because it may say something about how they will act in the future, it feels immoral to me to seek vengeance (that doesn't mean I can't feel a strong urge to, because the feelings are still real).

> As to my second point, I cannot show that. I believe without proof that existence has meaning, justice, truth, wisdom are good and to be sought, and ignorance, slavery, cruelty are bad and to be rejected.

And that's entirely fine, and I would largely agree because it's almost entirely orthogonal to the question of whether free will is real or just an illusion.

Re: A delightful quirk of relativity theory

#224
post #218

Earlier quoted context omitted.

> E.g. if you genuinely believe the notion that we have free will is nonsense (and I do), then the logical extension is to be very uncomfortable with the notion of e.g. prison used for vengeance or anything at all other than to the bare minimal extent required to protect others, because the logical conclusion of thinking people don't have agency is that there was no way other than other external stimuli in their live…

It doesn't erase the possibility , of course. It doesn't even erase the possible moral justifications for punishment . I was very specific with my wording there for a reason: It does erase the main moral justifications used for vengeance . With respect to using hard determinism as an excuse for vengeance, keep in mind that even a society that buys into the lack of moral justification for vengeance on a hard determini…

> I was very specific with my wording there for a reason: It does erase the main moral justifications used for vengeance.

It seems to do so either by erasing justification entirely (thus permitting anything), or by making it impossible to justify reforming any one person (by removing moral responsibility).

That is, under hard determinism, either society does not have to bother justifying anything it would like to do in response to what it considers a crime, or if you think moral justifications for actions are still required, it makes it impossible to actually say "person X requires rehabilitation", because placing such blame requires free will from which moral responsibility follows.

Re: A delightful quirk of relativity theory

#225
post #160
post #116

Earlier quoted context omitted.

Russel's teapot. If I claim Russel's teapot doesn't exist, the burden of proof is on you to prove it exists if you disagree with me, not me, because the set of claims that are so poorly defined and unlikely as to make it an unjustified burden to expect anyone to caveat the claims to make them technically correct is infinite - someone who makes an extraordinary claim without being able to provide a justification there…

The difference between free will and Russell’s teapot IMO is that free will to many is an internal, subjective, untestable experience whereas Russell’s teapot is an external object that is theoretically existent or non-existent for everyone regardless of their internal experience. If someone says they experienced free will today when they chose to stand up, it’s on you to disprove that it couldn’t possibly happen to…

If someone says they experienced free will today, the claim is ludicrous without a definition.

As such it's on them to first state a complete hypothesis of what happened to them, because absent that it is not even possible to start disproving it, and so rejecting it out of hand is perfectly justified just as much as it's justified rejecting Russel's teapot.

> What is your benchmark for determinism?

That everything we have so far observed with any kind of precision has turned out to be predictable to our level of precision or to show no sign of deviating from randomness.

Determinism is also a falsifiable theory: All you need to disprove it is to show the existence of a type of events which are biased in ways which can't be explained in a mechanistic or by randomness.

The total lack of such examples, despite a very substantial amounts of claims, which always collapses under scrutiny, gives me as much confidence in determinism as in gravity.

Our understanding of gravity could be massively off too - I'd consider it far more likely that we'll need to revise our understanding of gravity than determinism, because a non-deterministic model would require a fundamental change in logic to accommodate another category of causality which can not be modelled as a computation over a combination of mechanistic determinism and randomness and without just introducing regress (the last part there is essential to rule out "God did it" or "we're in a simulation" answers, both of which just lifts the question one level up).

The first step in falsifying determinism is to actually find a way of determining whether or not an event fits that criteria to show that it's even logically possible for such events to exist. Just that would get your name in the history books. Of philosophy anyway. And if anyone could present a logically sound argument for how such events could exist, it would seriously shatter my world view. I'd love that anyway because it'd force us to rethink a whole lot of things about the world from scratch. Unfortunately I think I'm more likely to meet santa.

> Yet many believe they experience free will everyday and many don’t, because it’s a subjective experience.

People's subjective experience is not in question. I feel like I make free choices every day as well. I feel like I'm exercising one right now in choosing to answer you. That does not give me any reason to presume that feeling reflects the underlying processes. That subjective experience have no bearing on the issue.

Re: A delightful quirk of relativity theory

#226
post #188
post #130

Earlier quoted context omitted.

Try probing what people think having free will actually means, and you'll quickly see that people tend to react very strongly if you suggest that they don't have some vague undefined ability to take actions that are not defined merely by the state of their brains and inputs. To me what you describe does not at all match what I've observed people try to defend as free will whenever you peer beneath the vague veneer of…

> ability to take actions that are not defined merely by the state of their brains and inputs. How would one prove/falsify that one's actions are merely a function of their brain state and inputs? Even assuming we have a perfect mapping of the brain and perfect measurement of all neural action, experiments still happen over time and the act of observing changes the observed, so you'd never have repeatability. It seem…

You can reduce that problem arbitrarily: To falsify determinism all you need to show is any instance, however small, of a non-random source of events without a measurable source.

To raise serious questions, you don't even need to prove the existence of such an effect - just finding even individual particles reacting in ways that seems to show structure (so e.g. ruling out randomness) without a reasonable idea as to cause would justify substantial effort in identifying the cause, and each failure to identify any would successively and significantly weaken the justification for determinism.

In other words: Same as with any other hypothesis for which no experimental data in history indicates otherwise.

Given that most of our reality involves trusting cause and effect, and to an extensive amount measuring it, and no such origination has ever been shown, it is justified to consider determinism to be true until there's data to show otherwise.

Re: A delightful quirk of relativity theory

#227
post #166

Earlier quoted context omitted.

Pardon, but your argument does not appear to be coherent. Your example in particular does not seem connected to your thesis in any way. I would suggest reformulating an argument that does not depend on a hazy refutation of physics.

Time in physics is similar to the number of a frame in video. For example, from two frames of a video of a thrown ball one can deduce the its whole trajectory. But it does now explain why when we see the video we see ball's movement. In a sense from a physical point of view the whole trajectory exists at once, there is nothing special about a particular point of a trajectory. There is no now. Now back to the freedom…

>>Time in physics is similar to the number of a frame in video. For example, from two frames of a video of a thrown ball one can deduce the its whole trajectory. But it does now explain why when we see the video we see ball's movement. In a sense from a physical point of view the whole trajectory exists at once, there is nothing special about a particular point of a trajectory. There is no now.

Here you are conflating a perceptual task with a kinematic equation. What makes you think that these two concepts make sense to tie together so intimately?

Re: A delightful quirk of relativity theory

#228
post #226
post #188

Earlier quoted context omitted.

> ability to take actions that are not defined merely by the state of their brains and inputs. How would one prove/falsify that one's actions are merely a function of their brain state and inputs? Even assuming we have a perfect mapping of the brain and perfect measurement of all neural action, experiments still happen over time and the act of observing changes the observed, so you'd never have repeatability. It seem…

You can reduce that problem arbitrarily: To falsify determinism all you need to show is any instance , however small, of a non-random source of events without a measurable source. To raise serious questions, you don't even need to prove the existence of such an effect - just finding even individual particles reacting in ways that seems to show structure (so e.g. ruling out randomness) without a reasonable idea as to…

I'm none the wiser.

What is a "non-random source of events"? Did you mean sequence of events?

Picture a band playing live on stage. Is the music produced random? Is it measurable by brain state/inputs? What if one of the musicians is slightly off tempo? What if one of them plays a wrong note? Is that sequence of events random enough? And is it still all measurable?

> each failure to identify any would successively and significantly weaken the justification for determinism

Failure to justify could also be explained by determinism. As could every other outcome from every experiment, since determinism is, by definition, the meta cause of cause and effect itself.

Re: A delightful quirk of relativity theory

#229
post #169

Earlier quoted context omitted.

Or you can just accept that reductive materialism is not an adequate description of the world.

Does your non-materialist theory involve true randomness (which is not really making a decision), or is it just more mind-stuff behaving deterministically in another dimension (which is not really free will)? I'm not sure there are alternatives to these.

Well, I model cognition and decision as energy in architecture. The Architecture dictates what adjacent states are available and what the default likelihood is of each. The more the energy expands itself because of its preferences, the more it can nudge the outcome towards one of the less likely adjacent states. Any outcome changes the state of the architecture and the architecture changes the state of the energy, so the two engage in a kind of coevolution.

Here's why I believe in free will: The preferences of the energy are subjective, not objective[1]. Its inputs are dictated by the architecture it resides in, but the meaning it attaches to them are determined internally and infinitely[2] more complex. So for example, someone who loves exercising gets very much the same nerve signals as someone who hates it. The difference is in the meaning each attaches to the experience, and meaning is not objective.

[1] AKA 'the hard problem of consciousness' [2] Insofar as internal communication happens across a higher-dimensional manifold than its communication with the architecture. For ease of visualization I imagine a three-dimensional gas interacting with the two-dimensional surface of a building, but I am working on a model that properly accounts for time.

Re: A delightful quirk of relativity theory

#230
post #42

This would be more fun in a blog post. Twitter is a fucking horrible format for a complex analysis of special relativity. That aside, my favourite quirk from relativity is this: "The more you move in space, the less you move in time." Like relativity in general, it sounds simple enough, but it's consequences are profoundly shocking. (That is, if you take the time to understand it, and don't leap to the conclusion tha…

Rescuing free-will from the jaws of spacetime would be cool! Free will does not exist. It is logically inconsistent. Either your choice is some function of your current state and the environment you are in, then the choice is not free, or it is independent of your current state and the environment you are in, then it is not your choice in any meaningful way, it is just the result of a coin flip. You can do some menta…

Forget people. Let's suppose we're all robots. Free will means our actions depend at least partially on our internal state; that is, our internal state can somehow influence our actions (the opposite is terrifying: being able to watch your actions but having no meaningful input on them). With this definition, free will is perfectly compatible with determinism (this is called compatibilism [0]). It's also compatible with probabilistic theories like quantum mechanics or every other branch of physics.

It's like in chess. If you are running an algorithm that plays chess, you will just play the moves mindlessly, so no free will right? Except that per my definition your internal state is influencing your moves, so, you are free (in this sense).

But there are situations where you're forced into a move. For example, the king is in check, there is only one move possible, then this move is forced. It's precisely in this forced case where there is no free will: you are being compelled to move by forces beyond your internal state.

"Forced" moves can have some shades of gray in chess as well. For example, you may be forced to sacrifice a piece to defend the Queen, because sometimes the game is just lost if you don't do so. So.. the rules of the games allow you do to something else, but you can't meaningfully choose if we suppose you're playing for winning. And, of course, you can only play legal moves: some board states have few legal moves left so you're comparatively less free. In those cases, you have your free will partially constrained.

[0] https://plato.stanford.edu/entries/compatibilism/

Post reply on HN