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Does anything exist?

I've been saying exactly that since the beginning. If you had been more focused on the argument than the arguer you might've noticed that weeks ago.



Oh, scratch that, you have no idea what I'm saying.



Wow, none of that demonstrates your claim in any way. Can't say I'm surprised.

Fine, no augmentations as to what excludes the question from being a question of philosophy. No surprises there.

Once again, what claim is it that you would like to assert is 'my claim'. Come on, be specific, perhaps even quote (mine) me. You can do it.
 
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No problem, having to sort though crap loads of cross-referenced, poorly indexed, and scattered all over the place documentation just to get to the little bit of information I need, comes with this job.


I'll try to be brief but no guaranties. You're touching on some broad reaching subjects.

What would you expect from a Philosophy of Biology Department? As for "most parts of biology" stems cells are probably one of the broadest reaching aspects of biology, from reproduction to development, immunology, healing of the skin and blood vessels from wounds, regulating angiogenesis (growth of new blood vessels), even the progression of cancer. Heck, even plants and insects have stem cells.

I don't think the authors of that were/are in a "philosophy of biology dept", are they. IIRC they seemed to be working in an institute of cancer research in Paris.


Seriously? "(by which I mean all branches of physics and chemistry, most parts of biology and most of maths)" does it have to do your laundry for you too?


I have no idea what you mean there by asking "Seriously?" ... I am saying (since it seems not to have been clear) that those are areas of science (ie all of physics and chemistry, most of biology and maths ... though "all" is too sweeping a classification, because there are fringe areas even under the headings "physics & chemistry") which I am calling "core" or "fundamental: ie areas of science dealing directly with studies that involve the major established theories and "laws" of science. Medicine is really outside of that.


Kidding aside though, what typical scientist is doing all that. Why ask more of philosophers of biology than, well, just biologists or philosophy and philosophers as a whole than just science and scientists as a whole?


Again some major confusion now - I did not say or remotely imply (anywhere) that any scientists were doing "all of that" ... I'm talking about scientists who work in those core fundamental fields, eg in theoretical physics, solid-state physics, physical instrumental chemistry, biological evolution and gene research, all of maths that is dealing directly or indirectly with what we experience as the world of reality around us.


Near as I can recall the only scientific developments with such broad reacting aspects were general relativity and quantum field theory. While they didn't involve most of maths they did require new aspects of and approaches in math to be created.


See above

GR was published in 1916. What's considered the basic start of QFT (QED) was published in 1927. However, it took decades and a crap load of people and work to get to what is QFT and The Standard Model (linking all forces but gravity and relating all know particles). The finial aspect was considered the development of Quantum Chromodynamics (a strong nuclear force analogy of the quantum electrodynamics, QED, for electromagnetism) in around 1973.

Such broad reaching developments don't come around often and get harder ever time.


Same thing again ... so, see the above


Again its not a matter of "that any of us could not similarly add" its simply who did add it and how.


Well who did “add it & how”? We are talking about the authors of the papers that have been linked over the past few pages. And from what I saw there, they were adding very little, if anything, of clear value, and not anything in core fundamental science (they were offering a suggestion of a way to contribute in medical science).

As far as I have seen, despite various claims for philosophy, there is actually no great contribution from philosophy in any of the claims being made in those links



Certainly, if your field is the philosophy of science or the philosophy of math then knowing science and /or math is just part of the job. Why shouldn't Wallace's actual career choices and position be the delineating factor rather than simply your preference?


Sorry, but I assume you are just making a silly remark/joke now. Look – I am saying that when people who work in university philosophy departments, make it their life's work to study the maths of quantum theory and quantum cosmology, then it seems to me they should be in a physics or maths department rather than in a department labelled “philosophy”. It's not a complaint, I am just saying that Wallace (and doubtless some others) seem to be wrestling with the same problems that theoretical physicists have been wrestling with ever since the discovery of QM.


For the aspects of reality thing, that comes back to the Wigner's friend experiment I linked some pages ago. Now Wigner had intended the thought experiment to show the dependence on consciousness for the for superposition of states to result in a single state, either A or B. However, in the experiment preformed quantum particles stood in for winger and his friend, eliminating that consideration of a dependence on consciousness at least for this experiment, but still shows both can get different results that are both true.

Article linked below

https://www.scientificamerican.com/...ox-has-major-implications-for-quantum-theory/


OK, well we are surely getting a bit silly now, but – firstly that is an article in a popular magazine, ie Scientific American, it is not a published research paper (so we should be a bit careful about how we treat that to start with). Secondly its' talking about what Wigner thought in the 1960's (what he thought about a 1920's thought experiment from Schroedinger (cat in a box, apparent “paradox”). The entire idea has of course been re-raised many times (and the article links a recent, 2020, paper doing that). But now you are taking this whole thread in the direction of arguing about what exactly is happening with things like the apparent entanglement of different quantum particles/fields …

… that is an enormous discussion which the best theoreticians have been trying to sort out for nearly 100 years, and without any definite or widespread agreement. You are talking about the fact that quantum theory has raised ideas of various strange and seemingly counter-intuitive properties which the particle-fields seem to display … and raising that as if it's at the heart of the matter for this thread and the thing which we must now discuss and try to solve …

… just because there are some very puzzling aspects of the way our current theory of QM/QFT appears to describe the “reality” of particle-fields that compose all of what we experience as the universe around us, and just because (in fact) many attempted experimental measurements seem to support those unexpected strange properties (such as entanglement), that does not mean that academic philosophy in general is making some significant contribution to what we now recognise as “science” (ie a different subject from philosophy, with a fundamentally different approach) …

… do you want to move the discussion of this thread into one of concentrating on those peculiar/unexpected implications of QM, and do you want to do that as a means of claiming that philosophy is making an important contribution to that area of human knowledge, in a way that the scientists who work in that field are either not making themselves or cannot make themselves? Is that where you are now heading? Because that's what it sounds like?

What I am saying about any of that, is that it's not Philosophy simply to think about how we try to understand what we have learned, and what we are still learning, about quantum theory as a way (seemingly the correct way) to describe the “reality” of nature as it actually exists with the most fundamental particle-fields. That's something that we have discovered through science. It's something we have pursued and studied through science. If you want to say that “thinking” about such issues is actually “philosophy”, then I think you are really back to claiming that all constructive thought is philosophy (and NOT science or anything else), and I don't think that helps at all.

If you are working in particle physics, in a science dept., then what you are doing is science (and not philosophy). Eugene Wigner and Erwin Schroedinger were both scientists (theoretical physicists); not philosophers. David Wallace is described as a Philosopher (I don't know how he'd describe himself), but like many philosophers with a strong background in maths and theoretical physics, he has taken a very deep interest in the problems raised by various seemingly peculiar issues within QM … but that does not make the problem, or the subject, one of “philosophy” … all that is happening is that scientists (and some philosophers) are trying to work out exactly how we should think of or describe or understand the properties that fundamental particle-fields/forces seem to have … and that is ultimately an area of, and an issue, in what we now call “science” (whoever is working in it). Why is that science and not philosophy? … Answer – because all of our initial knowledge of subatomic particles started within experimental science, and all of the theoretical research was done within science by people called scientists (even if the early ones such as Schroedinger and Bohr enjoyed debating philosophy and enjoyed talking about the famous names in past philosophy … at that time, scientists and all sorts of other intellectuals seemed to think it was clever and sophisticated to indulge themselves in such discussions of philosophy … they were of course, after all, living not long after an age in which philosophy was still thought of as the great intellectual pursuit) …

… or to put most of that more simply – if you look at the published work in QM, then afaik 99.99...% of the genuine research papers are in the science literature (journals like Phys Rev. Phil Trans, and early papers also in chemistry eg in J.Chem Soc. And JACS), and similarly 99.99..% of the people publishing that work have been scientists … NOT philosophers. Very simply, that's why it's science, and not philosophy …

… though as I said above (which was apparently not clear or misinterpreted) – philosophers or anyone else, any of us here even!, might make useful contributions when it comes to suggestions on what might actually be happening with particle-fields when we talk about effects such as entanglement or superposition, or in general all sorts of peculiarities associated with the famous double-slit experiment.

Eg, & just as a last comment or example on that –there is the now well known example where in 1969/70 a then little known psychicist/theoretician named Edward Tryon was at a conference on cosmology, when in the middle of someone else's talk (ie a verbal paper or research presentation) he suddenly blurted out aloud the thought that our universe might have originated from a so-called “quantum fluctuation” (ie a random change of state/energy of what had been identified as the universal Vacuum Energy). At the time everyone in the audience thought it was joke and they all laughed. But shortly afterwards Tryon published a paper explaining what he had in mind (see the two links below)

https://en.wikipedia.org/wiki/Edward_Tryon

https://cosmo.nyu.edu/andrei/physicsII/ET.pdf


Something else to note – in the late 1800's when people like JJ Thompson and P Zeeman were publishing early results in atomic theory that were soon to lead to ideas of QM (yes, I do know about Max Planck), they were publishing in a well known & prestigious journal called Philosophical Magazine (“Phil. Mag.”) … the point being that arroud 1900 the remnenets of historical philosophy were still present in a lot of what scientists were describing. It was still being thought of in some ways, as a continued part of earlier formal philosophy (in German papers, Annalen der Physik, Ann. Phys., and Zeitschrift für Physik were probably the main journals where a lot of early quantum papers were published).


At that time, and certainly 50 to 100 years earlier (eg (1800 -1850's) many scientists in Europe were also still deeply religious. They continued to believe that Christianity in particular did provide the true explanation for Man's existence and for the existence of the Earth and the whole universe … they prayed to a God, and they believed that miracles happened. And that was at a time when really major advances in science were starting to be made.

The point there, is that like philosophy, religious beliefs were still thought to be something that scientists must take into account in their explanations and theories. Religious ideas were still thought to be making a contribution to science … just as we are now claiming that philosophical ideas are still making an important contribution to science. I think that really looks just like a remnant of Man's history of what was believed to be educated & sophisticated thinking about the true answers in what at that time was still being thought of as Natural Philosophy … ie religious beliefs continued to be claimed as an important, or even vital, contribution … and it was the same with philosophical ideas certainly up to the early 1900's when many scientists continued to believe that earlier Philosophy & earlier philosophers were to be greatly admired as sophisticated important intellectuals who provided great insights into all the sort of things that were now being studied by new people called “scientists” … that has been a slow process of gradual change and gradually shifting opinion over several centuries from the times of people like Galileo and Newton.



Sorry, running out of time.


So to repeat my question from the above – do you want to talk about the peculiarities of entanglement and superposition or other such perplexing concepts in QM? Is that what all of the discussion is really boiling down to?
 
OK, thanks for checking all that stuff.

Sorry, I forgot to mention in the developments of QFT, the specific and ground braking contributions of Richard Feynman. He is really what took Dirac's 1927 paper (considered the origin QED) into what was QED, that became part of QFT. His Path integral formulation, from1947, that a quantum particle must take all possible paths to it's absorber. The probability that the a given absorber will receive the particle is a sum over all those particles histories.

https://en.wikipedia.org/wiki/Path_integral_formulation
 
So to repeat my question from the above – do you want to talk about the peculiarities of entanglement and superposition or other such perplexing concepts in QM? Is that what all of the discussion is really boiling down to?

I've got no problem talking about whatever you want. What the other discussion (if you can call it that) on the thread boils down to is self-consistency (ones assertions agrees with themselves) and general-constancy (ones assertions agrees with demonstrable facts)
 
Fine, no augmentations as to what excludes the question from being a question of philosophy. No surprises there.

I've already made the argument several times. You are being disingenuous. No surprises there.

Once again, what claim is it that you would like to assert is 'my claim'. Come on, be specific, perhaps even quote (mine) me. You can do it.

I've been very specific, and you dodged the question. Stop being dishonest. You can do it.
 
What it us with the "take to PM" crap all of a sudden?

Why do the ProudlyWrong suddenly want discussion about how wrong they are to not bein the public where everyone can see it.... oh never mind I got it now.
 
What, by PM? You do know you're on a discussion forum, right?

You seemed to be accusing Thermal of saying that philosophy is an alternative way of answering the same questions that science answers here. Thermal replied that he never said such a thing and you responded that you were, for whatever reason, speaking to the general you.

My suggestion was to respond directly to the individual post wherein a poster said that philosophy is an alternative way of answering the same questions that science answers. There's even a quote function you can use.

Here are my suggested response methods, best to worst:

- Respond directly to the post in question, using the built in quote functionality.
- Post a public message addressed to the 'general you'.
- Post a message addressed to the 'general you', but do it as a response to a quote by Thermal.
- Send a PM to someone (although I don't think you can PM the general you)

What it us with the "take to PM" crap all of a sudden?

Why do the ProudlyWrong suddenly want discussion about how wrong they are to not bein the public where everyone can see it.... oh never mind I got it now.

You could have asked him. Your post was immediately following his. Please feel free to reference the above posting rules.
 
You seemed to be accusing Thermal of saying that philosophy is an alternative way of answering the same questions that science answers here. Thermal replied that he never said such a thing and you responded that you were, for whatever reason, speaking to the general you.

Would it have been clearer if I had said "one" instead of "you", or would you have found some way to complain?

My suggestion was to respond directly to the individual

I have. Many times. I wasn't aware that we are not allowed to discuss claims of one person with another person.
 
Sadly, I'm stuck behind the great firewall, but I've got a bunch of books that I think have something meaningful in them somewhere. Reading through my library will take more time than doing some google searches, but I'll see what I dig up.

I started on the Aaronson book you recommended upthread and found a relevant quote right away:

Not every branch of science was scouted out ahead of time by philosophy, but some were. And in recent history, I think quantum computing is really the poster child here. it's fine to tell people to "Shut up and calculate," but the question is what should they calculate? At least in quantum computing, which is my field, the sorts of things we like to calculate - capabilities of quantum channels, error probabilities of quantum algorithms - are things people would never have thought to calculate if not for philosophy.

For more specific examples, there is Democritus' idea of the atom and the attendant insights I posted earlier, and David Hume's notion that universal time, independent of an observer’s viewpoint, doesn’t exist. Einstein has made it very clear on several occasions that it's very possible he would not have been able to conceive of the special theory of relativity if he hadn't been exposed to Hume's rejection of absolute time. He goes on about this at length in his letters, making for some interesting reading.
 
Well, while I think some philosophy has value, I'm probably less of a fan of philosophy in general than a lot of people. I think that kind of broad definition is probably useless.





Valid question. I'll try go beyond my vague impressions (based on what other people who ought to know have said) and give you something more concrete. Recently I was reading some Lee Smolin stuff and he was describing the influence of logical positivism on Einstein and his work on relativity, as well as a later rejection of logical positivism by him (but embracing on of it by people like Bohr, and again an influence on his work, and that of his circle). Smolin thinks this both helped bring on those breakthroughs (like relativity, and also Bohr's initial model of the atom) and, later, to negative outcomes for modern physics.

But is he right? Either about the influence or the outcome? It'd be more useful if I had some direct quote from Einstein (or Bohr) themselves here. I'll see what I can dig up.

I've also got an impression from my reading that people like Heisenberg and Schrodinger were strongly influenced by philosophy. But again, your question is valid: what specific philosophical insights actually contributed to their work? I can only say that my current prior is relatively high that those things had a strong impact, but if we're trying to have a conversation something specific is necessary to convince you.

Sadly, I'm stuck behind th great firewall, but I've got a bunch of books that I think have something meaningful in them somewhere. Reading through my library will take more time than doing some google searches, but I'll see what I dig up.

IMO it's almost impossible to talk about QM without touching on philosophy. It's fundamentally different than most previous scientific theories in that it is a mathematical theory with no clear interpretation of the underlying reality the math is describing.

"Shut up and calculate" works but is it really ok for science to abandon any attempt at describing reality? Alternatively we can attach ourselves to interpretations of QM that can't be investigated scientifically. Again is this really ok? These are, IMO, philosophical questions that can't be answered scientifically. It is always possible that a new theory will come along that explains QM and doesn't have these problems, but the fact remains that QM is the best theory mankind has ever developed and we have no way to know what reality it's ultimately describing.
 
Prove to me that link exists.

Prove to me that the internet exists.

Prove to me you're not a brain in a jar.

(See what I mean?)

I really don't see what you mean.

I assume you are inventing you own definition of philosophy in an attempt to "prove" philosophy has no value. The problem with that it your definition has nothing in common with anything anyone with even the slightest knowledge would recognise as philosophy.
 
That there are certain people who aren't doing good science doesn't mean ST itself is worthless or unfalsifiable. It may lead nowhere, but I'm not able to critique it myself, so let's wait to see if it does.

You may as well be saying "That there are certain people who aren't doing good science doesn't mean Intelligent Design itself is worthless or unfalsifiable."

The fact is that the only cases where string theory makes a prediction, failing to find the predicted result can ALWAY be explained away by saying "we needed a bigger particle collider" and there is no way to know or even estimate just how large a particle collider you would need.

This is directly analogous to ID where any prediction of what something should look like if it were the product of intelligent design can be explained away by saying "maybe the designer did it that way for some reason we don't understand yet".
 
I have. Many times. I wasn't aware that we are not allowed to discuss claims of one person with another person.

It's not that we were discussing another's claim. You were refuting my assertion based on some generic other's position. Which I quite adamantly do not hold.

We have a huge amount of conflation in the arguments as-is. Scorpion's posit is not held by the majority of posters ITT. Most of us consider the metaphysical angle to be a kind of Fringe Option 3, and in no way one of the primary talking points. It's pretty much only our silent OP and JM who think those are the "sides". The rest of us, including you, I believe, do not endorse this goofy belief that philosophy is in competition with science.
 
You may as well be saying "That there are certain people who aren't doing good science doesn't mean Intelligent Design itself is worthless or unfalsifiable."

The fact is that the only cases where string theory makes a prediction, failing to find the predicted result can ALWAY be explained away by saying "we needed a bigger particle collider" and there is no way to know or even estimate just how large a particle collider you would need.

This is directly analogous to ID where any prediction of what something should look like if it were the product of intelligent design can be explained away by saying "maybe the designer did it that way for some reason we don't understand yet".

Personally, I think there are some problems with the falsifiability criterion as a sole judge of whether something is "science". I certainly think it's a good, useful, heuristic. Most of the time if you look at an idea and say "is this falsifiable?" and the answer is no, chances are it's not a very useful idea.

If there are two explanations that can't be distinguished experimentally, but one of them is just much simpler while the other one is "epicycles on top of epicycles", I'll prefer the former, mainly due to something like Occam's razor, in spite of not being able to use falsifiability as a criterion for distinguishing between those ideas. This is why, for instance, I'm an Everettian.

Popper was great, but I don't think he completely solved the problem of defining what is and isn't science.
 
I started on the Aaronson book you recommended upthread and found a relevant quote right away:

Not every branch of science was scouted out ahead of time by philosophy, but some were. And in recent history, I think quantum computing is really the poster child here. it's fine to tell people to "Shut up and calculate," but the question is what should they calculate? At least in quantum computing, which is my field, the sorts of things we like to calculate - capabilities of quantum channels, error probabilities of quantum algorithms - are things people would never have thought to calculate if not for philosophy.

Haha, that's actually the same quote I posted earlier (for those reading, it's very early in the book, so not surprising that it's the first quote both of us saw relating to the thread's topic).

Glad you started the book! I'm enjoying it a lot so far.

For more specific examples, there is Democritus' idea of the atom and the attendant insights I posted earlier, and David Hume's notion that universal time, independent of an observer’s viewpoint, doesn’t exist. Einstein has made it very clear on several occasions that it's very possible he would not have been able to conceive of the special theory of relativity if he hadn't been exposed to Hume's rejection of absolute time. He goes on about this at length in his letters, making for some interesting reading.

Thanks, yeah, the thing about Einstein is exactly the sort of thing I was thinking of.
 
People here defending philosophy (and anyone else) should have a look at the link below, which is from the long running well known series Closer to Truth. It's a set of short interviews with 4 or 5 different scientists and philosophers, asking exactly this question of what use philosophy is to science today -

https://www.youtube.com/watch?v=opkiJFUyeMs

That includes an interview with Scott Aaronson who was highlighted here earlier as an example of why philosophy is important to science. See what he says there.

The interview with Colin Blakemore (neuroscientist and philosopher) is particularly interesting for a rather bad reason ... where at about 13min 10 sec. Blakemore says that philosophy is important or useful because it asks certain questions that people in some fields of science, such as medicine or biology, might not think of for themselves, or where they might not understand the importance of such questions ... and there the host then asks him “what sort of questions are those?”, and Blakemore lamely replies saying “questions like what it means to say that you have proven something” …. OK, well people here should be horrified by a remark like that coming from someone who is a well known professor of neuroscience & philosophy – he's actually saying that people in fields like medicine and biology might fail to understand that they are not actually providing literal proofs! Does he really think that scientists do not know what the word “proof” means, such that they would need philosophers (of all people) to explain it to them?! (“of all people”, because philosophy is a field overflowing with claims of “proofs”, which are of course not actually “proofs” at all, or certainly not as applied to any objects & events detected as part of reality).

Though what Blakemore is inadvertently highlighting there, is exactly what I have warned about all the way through this thread (and in many previous threads); namely that medicine is not by any means part of core fundamental science … ie, whereby in medicine, and in some parts of biology, many of the professors (and we are talking about real research scientists/professors here) may indeed not clearly understand either the power of science & what it has achieved, or understand the limits of science as those limits are now almost universally understood by physicists working in core fundamental physics. But having said that, people in Blakemore's fields of neuroscience, and in fact also in philosophy, are even further outside of core fundamental science and are imho ever less likely to properly appreciate and understand what core science has achieved, what it's power is, and what it's limits are (or may be).


OK, well there are all sorts of things in that short YouTube film that I think those who are defending philosophy here, should take a good look at, listen to, & think, about.

My position is more-or-less what all of them have said, but closer I suppose to Steven Weinberg who IMHO is saying what the others were also saying, but just being a bit more honest & open about it, to say that philosophy today does not really appear to have anything left to contribute to what is now the very different, and let's be honest, the very much further advanced subject than “Philosophy” (capital and quotes because I'm talking about what is taught as “Philosophy” in university courses and has been said or claimed by all the famous named philosophers of the past … i.e. I'm not talking about what any of us might do in merely trying to think of as reasoned explanations for anything in the world of “reality” around us).
 

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