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Science without Validation in a World without Meaning

americanaffairsjournal.org

41–50 of 127 posts

Re: Science without Validation in a World without Meaning

#41

Earlier quoted context omitted.

Well, the following seems fairly harsh to me, and I would recommend rephrasing it: > IMO few categories of professions have a harder time understanding cutting-edge science than engineers. That is because they think they know science because they use similar mathematical and technical tools, when in fact the professions do the exact opposite of one another. The wording "few categories" in particular seems hyperbolic.…

I think the huge overlap in shared tools, techniques, technologies, language etc. can act to obscure the fundamental differences in mindset between the fields. If a research scientist doesn't know how their work is going to turn out, they're probably on the right track. If an engineer doesn't know how their work is going to turn out, they're probably on the wrong track. Non-STEM folks might have a hard time understan…

> If a research scientist doesn't know how their work is going to turn out, they're probably on the right track. If an engineer doesn't know how their work is going to turn out, they're probably on the wrong track.

Your view of engineering doesn't fit with my experience. Certain areas of engineering are quite conservative and take that approach, using primarily proven designs (e.g., structural mechanics, fire protection). Licensed professional engineers generally follow that pattern. But this is not characteristic of engineering as a whole.

E.g., a small side project of mine is a device I intend to get a patent on. I understand the physical mechanism (the science) behind the device but have only a vague idea of what the actual device itself will look like. It's going to take a fair amount of experimentation to figure that out. Experimentation and design are fairly closely linked in engineering, and this was emphasized in my education.

Add on top of that the engineers who basically just experiment with various poorly understood systems. I'm thinking in particular about the industries with chemical processes and chip fabrication here. They might not have any clear understanding at all at first about why certain changes have certain effects. Now, some of these engineers might not care and accept that something works without understanding why. But many of them will look into that.

> Non-STEM folks might have a hard time understanding either field, but they might also be less likely to assume that they already do.

You identify a real phenomena, but I don't think there's a reason to single out engineers here. My own experience with physicists is that they are typically overconfident about their own fluid dynamics knowledge, for instance.

Re: Science without Validation in a World without Meaning

#42
post #36

Earlier quoted context omitted.

I think only snowwrestler has a good point. "Waiting for the science" is the same as saying "we know for a fact that burning carbon is safe" if both of those result in burning unsustainable amounts of carbon. >I'd say having 70% of the information, something like that. This is still missing the point. This means that you need only 31% of science to continue burning carbon, but you need 70% to stop burning carbon. You…

> If you say "let's wait" you're saying "it's safe to keep doing what we're doing" even though you don't have any justification for that. As I responded elsewhere in this thread, by this criterion, we should stop pretty much everything we are doing. Which is not a viable option, never has been, and never will be.

>As I responded elsewhere in this thread, by this criterion, we should stop pretty much everything we are doing. Which is not a viable option, never has been, and never will be.

No, I'm not saying this. I'm saying we need to stop pretending its sustainable to keep burning carbon at the rates we are. It's not sustainable and we need to take painful steps immediately to stop this.

It does not mean we need to "stop doing pretty much everything we're doing". Not sure where you get that idea. It means we need to stop allowing every Cletus in Kentucky to buy an F-350 and pay $1.89 for a gallon of gas to cruise 56 miles to the local Walmart to buy factory farmed beef and a bunch of plastic sh!t shipped across the globe from 12 different parts of China.

The idea is we should live in reality, not that we shouldn't live.

Re: Science without Validation in a World without Meaning

#43
post #15

Earlier quoted context omitted.

> But we don't. And the only way to expand what we know is to spend a ton of time doing things that we don't know. That can sound great, at least from a scientist's point of view, the issue is that many times those "things the scientists don't know about" are taken as a given (i.e. closer to the "truth" compared to the things that non-scientists reason about) and they come back to bite us non-scientists, meaning the…

That's a great example; and, the instant we got 1 (one!) report that gave evidence of a significant percentage of the population having experienced the virus with few symptoms -- thus lowering the CFR (Case Fatality Rate) for that segment of the population to something near a low multiple of the normal Flu -- the "lockdown" hypothesis should have been discarded, violently, for that segment of the population! But, it…

> thus lowering the CFR (Case Fatality Rate) for that segment of the population to something near a low multiple of the normal Flu -- the "lockdown" hypothesis should have been discarded, violently, for that segment of the population!

You are deeply into "Not even wrong" territory.

The plural of anecdote is not data.

Did you forget HCQ already? Lots of "positive reports" and yet controlled studies shows that it kills more Covid patients than leaving them untreated.

We have data and hypotheses showing that it's mostly continuous exposure that matters (which means that nongroup workers are better off than we expected and casual interactions to buy groceries and such are safer than expected), and yet everybody wants to get back into groups--which is known wrong. Two Mother's Day gatherings account for more than 50% of the Covid cases in Santa Cruz county.

Data by itself is meaningless. Data leads to a "falsifiable hypothesis" which can then be tested. AFTER the test passes or fails, you modify your Bayesian priors and your working tasks. Lather, rinse, repeat.

Re: Science without Validation in a World without Meaning

#44
I work in molecular biology research, and I think this is a great article that strikes at the heart of many problems in the field. I can't comment on the climate change stuff, although I wish he hadn't included it because it was almost certain to distract people from the overall point.

The problem is that there are no remotely comprehensive, predictive, and mathematical models of what goes on inside of cells. It is pure empiricism: you run an intervention, and see what happens. Write it up in a paper.

All well and good, except there are no viable models of what is happening inside that are predictive in the sense of being able to know what an intervention will do until you test it. We really need that if we want to develop treatments for molecular diseases that are more than marginally better.

The Santa Fe Institute, systems biology people, and others were working hard on this problem at the turn of the century, but progress has stalled. It's too hard. We don't know how to do it. A new "mathematical epistemology" that could handle this problem would be a huge step forward, if it is possible.

I can see why the author would extend this idea to things like economics or climate science. The thought in systems research was that, perhaps, different fields share similar underlying "complex systems" mechanisms, and if we can solve the problem in one area, we may have insights for how to do it elsewhere.

Re: Science without Validation in a World without Meaning

#45
post #43

Earlier quoted context omitted.

That's a great example; and, the instant we got 1 (one!) report that gave evidence of a significant percentage of the population having experienced the virus with few symptoms -- thus lowering the CFR (Case Fatality Rate) for that segment of the population to something near a low multiple of the normal Flu -- the "lockdown" hypothesis should have been discarded, violently, for that segment of the population! But, it…

> thus lowering the CFR (Case Fatality Rate) for that segment of the population to something near a low multiple of the normal Flu -- the "lockdown" hypothesis should have been discarded, violently, for that segment of the population! You are deeply into "Not even wrong" territory. The plural of anecdote is not data. Did you forget HCQ already? Lots of "positive reports" and yet controlled studies shows that it kills…

OK, I'll bite, and ignore the dismissive "not even wrong" insult!

Remember how the scientific method works: if you make a hypothesis, it's the most fragile thing in the universe -- a single falsification is all it takes to send you packing.

So, every time someone trots out "the plural of anecdote is not data" when presented with a refutation, this tells us something important... Like it or not, that's just how it works.

A group's CFR is almost the only thing that matters to that specific group. If the CFR is low, it literally does not matter at all how, or how fast you got infected -- the statistical outcomes are now known! The "continuous exposure" vs. "casual interactions" thing? That R-0; interesting, but almost irrelevant vs. CFR. In fact, once low group-CFR has been ascertained, the "normal behavior case" R-0 defines the societal infection/immunity rate required to achieve their group's contribution to societal herd immunity, but otherwise is of little interest: the average group participant just wants to gain immunity, as quickly as possible, to provide protection for the high-risk groups.

So, the fact that multiple independent instances of (accidentally measured, statistically significant) high rates of group infection without demise, leading to a low group CFR are extremely surprising, and that should have led to a "stop work, tools down" moment for those engineering our societal response. But, it did not.

That is disappointing.

I think the most disappointing thing, to me, is how many in our society are more than ready and willing to throw the innocent, high-risk elderly and those with co-morbidities "under the bus", just to avoid their own (very low) CFR.

Take it like a man/woman.

Re: Science without Validation in a World without Meaning

#46
post #34

Earlier quoted context omitted.

> Everyone is already under the imposition of public policy, right now. To the extent that this is true, it is, IMO, mostly a bug, not a feature. > the public policy imposed on us today is based on what we thought we knew back when it was put in place. If you seriously believe the public policies we have today were all based on the best current knowledge at the time they were put in place, all I can say is that you h…

I don't think I claimed they were based on "best current knowledge," but I hope we can agree that is an ideal to aspire to.

> I hope we can agree that is an ideal to aspire to.

It's an ideal to aspire to, but only if the ideal includes a very strict standard on what level of knowledge justifies dictating a public policy at all.

Re: Science without Validation in a World without Meaning

#47
post #36

Earlier quoted context omitted.

> If you say "let's wait" you're saying "it's safe to keep doing what we're doing" even though you don't have any justification for that. As I responded elsewhere in this thread, by this criterion, we should stop pretty much everything we are doing. Which is not a viable option, never has been, and never will be.

>As I responded elsewhere in this thread, by this criterion, we should stop pretty much everything we are doing. Which is not a viable option, never has been, and never will be. No, I'm not saying this. I'm saying we need to stop pretending its sustainable to keep burning carbon at the rates we are. It's not sustainable and we need to take painful steps immediately to stop this. It does not mean we need to "stop doin…

> It does not mean we need to "stop doing pretty much everything we're doing". Not sure where you get that idea.

Because your own stated criterion is that we need to be able to justify what we're currently doing based on scientific knowledge. We cannot justify most of the things we're currently doing on that basis.

> The idea is we should live in reality

We apparently don't agree on what "reality" actually is, at least with respect to how much of an emergency CO2 emissions are. You think they're a dire emergency. I think they're not an emergency at all. You will, I take it, claim to justify your belief that they are a dire emergency based on some kind of scientific knowledge. But it isn't. Nobody has a good enough predictive track record about the climate to make such a claim. So this claimed "knowledge" isn't actually knowledge at all; it's just people's beliefs and hypotheses and speculations. And that isn't a good enough basis to dictate public policy to everyone. Which is one of the key points the article we are discussing in this thread is making.

Re: Science without Validation in a World without Meaning

#48

Earlier quoted context omitted.

I think the huge overlap in shared tools, techniques, technologies, language etc. can act to obscure the fundamental differences in mindset between the fields. If a research scientist doesn't know how their work is going to turn out, they're probably on the right track. If an engineer doesn't know how their work is going to turn out, they're probably on the wrong track. Non-STEM folks might have a hard time understan…

> If a research scientist doesn't know how their work is going to turn out, they're probably on the right track. If an engineer doesn't know how their work is going to turn out, they're probably on the wrong track. Your view of engineering doesn't fit with my experience. Certain areas of engineering are quite conservative and take that approach, using primarily proven designs (e.g., structural mechanics, fire protect…

The only reason I singled out engineers is that this article was written by an engineer. I agree it can go both ways.

https://xkcd.com/793/

:-)

Re: Science without Validation in a World without Meaning

#49
post #13

Earlier quoted context omitted.

Never again should public policy be made subject to uncertainty? I may have some bad news for you about the human condition.

Never again should we allow people to pretend that their favorite brand of uncertainty deserves special accommodation.

What an insane statement. This is literally everything that politicians do: advocate for what they think is best based on our collective lack of understanding of science/economics/relations etc

Re: Science without Validation in a World without Meaning

#50
post #23

Earlier quoted context omitted.

That's a great example; and, the instant we got 1 (one!) report that gave evidence of a significant percentage of the population having experienced the virus with few symptoms -- thus lowering the CFR (Case Fatality Rate) for that segment of the population to something near a low multiple of the normal Flu -- the "lockdown" hypothesis should have been discarded, violently, for that segment of the population! But, it…

The botched response to COVID-19 will bring the whole institution of modern science crashing down, when all is said and done. Maybe you don't want to believe that, but there it is: https://guscost.com/2020/05/12/pandemic-woo/ By the way, I still have not heard of a single serosurvey being run in South Korea. Why is that?

Why, indeed.

It's almost like people just don't want to know the CFR of this thing... Why wouldn't you want to know the CFR, in exquisite detail, down to groups refined by as many distinguishing details as you can possibly measure? But, surprise! You simply cannot know the CFR of Covid-19 without statistically valid immunity studies of the general population. Which nobody is doing! Just ... crazy.

Its stunningly clear that outcomes for this disease are wildly variable. For some, its extremely risky, for other groups, its not even a passing thought!

And yet, here we are -- global, carte-blanche "quarantining", to "flatten the curve" -- that big, ill-defined "curve" that means sudden death to our civilization if we get near it!

And yet, here I sit in a community with virtually empty hospitals, but almost no progress toward herd immunity. But, with an undercurrent of well-distributed carriers -- because nobody is interested in testing the general population (for either infection or immunity). And, we're starting to "open up". Heaven help the elderly and immune-compromised -- they are just toast.

In 2-3 weeks, a brutal "second wave" is just ... guaranteed. And, it'll be presented as a "surprise"! Who could have possibly predicted it! By golly, we'll have to really put the hammer down, this time!

I pray that this bungled, too-terrible-to-be-an-accident response to Covid-19 comes home to roost on those who should have known better. But, the truth won't be coming out from the criminally complicit "media". If only we had any "Journalists" to expose this thing! But, big-media is on the gravy-train of the politicians (here in Canada, at least), so there's no hope of that.

Independent journalists need to step up, somehow run the gauntlet of our controlled Internet media outlets (say something contrary to WHO -- ban-hammer!), and expose this thing!

Fortunately, evidence-based reality cannot be suppressed forever!

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