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Why Science is Failing Us
- tokenadult 15y agoThis is an important article with well chosen examples. But I think the headline points to the wrong "cause" of failure. Scientists, the directors of science research funding projects, and the general public can better understand what we know and what we don't know about causation from correlation if science teachers and journalists do a better job. For a long time, members of the journalistic community and members of the general public have been overinterpreting tentative scientific findings, http://norvig.com/experiment-design.html http://norvig.com/experiment-design.html and if we learn the lessons of how to interpret research findings more cautiously, we can all do our part to guide further research better. As the author of the submitted article points out, "This doesn't mean that nothing can be known or that every causal story is equally problematic. Some explanations clearly work better than others, which is why, thanks largely to improvements in public health, the average lifespan in the developed world continues to increase. (According to the Centers for Disease Control and Prevention, things like clean water and improved sanitation—and not necessarily advances in medical technology—accounted for at least 25 of the more than 30 years added to the lifespan of Americans during the 20th century.) Although our reliance on statistical correlations has strict constraints—which limit modern research—those correlations have still managed to identify many essential risk factors, such as smoking and bad diets." So with caution about assuming causation where the data cannot reliably show causation, http://escholarship.org/uc/item/6hb3k0nz http://escholarship.org/uc/item/6hb3k0nz the huge task of biomedical research can still go forward, eventually yielding other findings that can improve health or longevity compared to today's baseline. AFTER EDIT: The question posed in the first reply below is interesting. One reason that biomarker interventions are tried more often than "hard endpoint" interventions is simply that they are faster and easier. To really check carefully for hard endpoints--reduced mortality and morbidity, for a medical treatment--takes time in a clinical trial. Sometimes an effective on a biomarker, for example serum cholesterol, can be observed right away, but if the subjects in a study are at an age at which few subjects die from any cause, it can be a long while before a study reveals which treatments actually increase rather than decrease the risk of death. The case of the drug rimonabant, http://en.wikipedia.org/wiki/Rimonabant http://en.wikipedia.org/wiki/Rimonabant which had reasonably strong support from animal experiments as an antiobesity drug, is instructive. Studies of human subjects after the drug was approved in Europe revealed a huge increase in suicidal risk among patients taking rimonabant, http://www.pharmacist.com/AM/Template.cfm?Section=Pharmacy_News&template=/CM/ContentDisplay.cfm&ContentID=24206 http://www.pharmacist.com/AM/Template.cfm?Section=Pharmacy_N... and eventually approval of the drug in Europe was withdrawn, and the drug was withdrawn from the market by its manufacturer, before rimonabant was ever approved in the United States.
- aidenn0 15y agoAlso, it's not a failure to e.g. notice that high levels of biomarker X are correlated with disease Y, so let's try lowering X and see what happens. That's just the next step in determining causality. What happens is doctors read the correlation and start massively prescribing biomarker targeted remedies (such as vitamin B) before any causation is shown. Why does this happen?
- alextp 15y ago> Why does this happen? I'd guess it's because promoting this possible causal link as a cure for diseases is pretty much the easiest way to get it tested---where else will you find 25k volunteers? As always, when people are involved, the reason for failure seems to be in the incentive structure.
- bmuon 15y agoBecause treatment is not science. Its goal is not to understand more about your body but to cure you and/or relieve you of your symptoms. So yes, doctors try to cure with what they know is the best option and they try again if it fails.
- pnathan 15y agoThat's one of the best Wired articles I've read in a long time. I recommend reading it.
- mindstab 15y agoI don't quite know how to adequatly articulate my displeasure with this article but lets try. The article basically seems to be relying on some philosophy and muddy and different definitions in different contexts (philosophy vs science vs standard usage) of words like "fact". Then it talks about how things are getting more complex and we're spending more effort to learn things now than we used to because "we know all the easy stuff". And seems to conclude that we'll still be no better than religious shamanistic people once we "know all there is to know" and it still won't do us a lot of good. It seems to be advocating give up on science now, with some rational like "while we're ahead". I honestly don't get it. It seems like cloudy wooly thinking, bad arguments. Sure, things are getting more complex and will continue to, but that doesn't mean we should give up, or that "it's mysteries all the way down". Every year we learn more and fix more problems. And we have to and always have had to make a lot of mistakes in the process. The author seems to think we're making more mistakes now and that's an indication the game is almost up. I disagree, medical science is still churning out amazing breakthroughs, like HIV and cancer vaccines this year. And physics is still coming up with amazing things. Just because it's getting harder doesn't mean we should stop or that we'll hit a wall and be able to go no further (and if we can see that wall coming we might want to think about stopping prematurely?) Everytime we thought we'd learned everything we've been able to push on and learn more, discover more depth, and use it more to our advantage. I don't strictly speaking see why that has to stop just because it's getting harder. At least any time soon. Each new level also gives us better tools to work with. And there have always been people saying we know enough now, or it's getting harder so lets stop now. And some have, and many haven't and that's why we still have progress. This is a age old endless reoccurring trend and bares the same ignoring it has always gotten. Or you can step off the train of progress and be left behind. I do not think science is failing us at all in anyway. I think this article is poor on many standards.
- polychrome 15y agoI can see your frustration with this article. I think the point is that we need to come up with new methods to predict and learn from. Just like we came up with a system of linking cause and effect, we need to come up with a system that links multiple causes and effects easily. Making the article relevant to this point, Pfizer spent tons of money developing a drug and bet it would work simply because (at the time) lowering HDL = better cholesterol. No one asked what does HDL do in the body? What does LDL do in the body? What depends on cholesterol? It's kind of like when you come up with a really cool idea but forget to look at the target market to see if it's actually viable.
- zasz 15y ago"Another meta review, meanwhile, looked at the 49 most-cited clinical research studies published between 1990 and 2003. Most of these were the culmination of years of careful work. Nevertheless, more than 40 percent of them were later shown to be either totally wrong or significantly incorrect." If science was really failing us, I don't see how we would have managed to retract those incorrect studies. It feels like the writer had no bigger point than "biomedical research is hard, let's go shopping." It's sensationalist to consider science a failure every time it makes a mistake. I thought the Hume references were pretty bad, too. If you read what he says, he questions the existence of relations such as "A causes B" and prefers to phrase them as, "In the past, we have observed A-like events are always correlated with B-like events." For practical purposes, that's enough to behave as if causality "really" exists. You just have to avoid mixing up causality with mere correlation, which every good scientist already knows.
- Trey-Jackson 15y agoTLDR Way too long, meandering, full of anecdotes. How is it at all surprising that trying to "fix" problems with the body is uber-complicated? Plus, there's the obvious missing bigger point - all these companies are trying to find a solution that is a pill, as opposed to changing the underlying problem: bad food, bad environment, bad physical conditioning, etc. Billions spent on finding pills, very little money in solving the root causes...
- kenjackson 15y agoI think scientists see this as a success. You get data and you revise your hypothesis. You get more data and you revise it again. A lot of people want science to be like politics. They want you to pick a side and stick to it regardless of the data. IMO, when conventional wisdom isn't at least occassionally overturneed -- that's when I'll begin to think science is failing us.
- SoftwareMaven 15y agoThe problem is we are publishing the wrong answer too many times. The bias in journals to publish positive responses (not to mention the drive to create company profits!) means people aren't rewarded for finding out they are wrong. Fix the incentives, and I think we'll have better science.
- Joakal 15y agoThe incentives are research companies offering money for successful researchers. Since having failed attempts makes a researcher appear less successful to businesses, they hide it. Not sure how you would 'fix' those research companies.
- Karellen 15y agoOne possible way is that, if you are in the position to make decisions based on, or make use of, the research results of others (e.g. you're the FDA, or the journal Nature) you require that companies publish/register the methodology of any research they intend to conduct before it begins. If someone submits/relies on the results of a study which was not pre-registered, the data is ignored. Any by pre-registering, you can follow up on research that has been silently "forgotten about". If too much research is forgotten about, you stop trusting the results you do hear about.
- Joakal 15y agoIt sounds like a good idea! But: What if they instead do research secretly. Then on research success, they publicly notify the journal of what they intend to do and that it will take 5 months to research. Then 6 months later (an extra month to look plausible), they publish their successful data.
- polychrome 15y agoThis article does a great job of pointing out how science has limited it's thinking. It's not that science is wrong or is going to perish, it's simply needs to open it's perspective more. Take for example the first time you came up with a cool new product. You took it to a VC/someone who's done it before, and they ask you about your market, price, revenue etc. Science is still creating cool new products, not paying attention to everything else around it. Here's another good example: wind farms. We've been creating massive new wind mills that are more efficient bigger, etc etc. Have we ever looked at how to install them in such a fashion that they become more efficient as a team rather than an individual? And have we looked at how wind patterns change because of them?
- winestock 15y agoThe advice of pnathan, elsewhere in this thread, is good. This is a better article than what I've come to expect from Wired. The main point of the article is that scientists have exhausted the low-hanging fruit of useful correlations and are now grasping at the more dubious correlations. The author claims that things are complicated by the concept of causation. He cites David Hume: "...causes are a strange kind of knowledge. This was first pointed out by David Hume, the 18th-century Scottish philosopher. Hume realized that, although people talk about causes as if they are real facts—tangible things that can be discovered -- they’re actually not at all factual. Instead, Hume said, every cause is just a slippery story, a catchy conjecture, a 'lively conception produced by habit.' When an apple falls from a tree, the cause is obvious: gravity. Hume’s skeptical insight was that we don’t see gravity -- we see only an object tugged toward the earth. We look at X and then at Y, and invent a story about what happened in between. We can measure facts, but a cause is not a fact -- it’s a fiction that helps us make sense of facts." It's been a while since I've taken philosophy, but Hume's skepticism of causality is itself a story by its own criteria.
- saulrh 15y agoA slight amendment to your statements: in some fields of research, we've exhausted the low-hanging fruit, and "low-hanging" is defined differently for every field. In mathematics, for example, we ran out of obvious things in the 1700s, but there are still "low-hanging fruit" because the cost of investment is so low. My field, robotics, is currently new enough that we're still finding things that are obvious in hindsight. In pharmaceuticals, things are pretty easy to come up with, but really ridiculously expensive to test and verify the safety of. Making sweeping statements about "low-hanging fruit" doesn't work.
- blix 15y agoThis article misses the mark completely, both by extrapolating medicine to science as a whole, and by attacking the idea of causation rather than the sketchy practices of medicine. All of the examples are pulled from medicine, notorious for its lack of experimental rigor. To say that "Science has failed us" implies that either medicine is the the only important science or that all science is equally as sloppy, which is pretty insulting to a scientist in any harder field. His focus on causation is even more misguided. The very purpose of science is to understand the way the world works; to understand what causes what. To attack the idea of causation is to attack the very idea of science, and in turn all of the advances it's brought about over the past 300 years. Beyond that, we implicitly accept causation in almost every aspect of our lives (Pressing the space bar causes a space to appear, etc). Certainly causes can't be 'seen' like facts, but to suggest that this trivializes them, or somehow makes them less useful is nonsense (and, for what it's worth, is total misreading of Hume). Complexity isn't a valid reason either. Some very well understood systems are incredibly complex (look at the computer you are using now). What is true is that like all other humans, scientists make mistakes. We often make the incorrect causal links or are influenced by our biases. This is why experiments exist (instead of pure data collection); to make sure the causes we have assumed are correct. To point to a couple of experiments with an unexpected result and then say that all of science has failed isn't even a little bit right.
- refurb 15y agoI would have to disagree that medical research lacks experimental rigor. If you were to say that medical research _accepts_ a lack of experimental rigor (simply because there is no other option), I would agree with you.
- bmahmood 15y agoAgree that the author's extrapolations of the problems of medicine to science are cringe-worthy. The focus on medicine though makes me think it was just a bad editorial decision for the headline. That said, I think he is correct in his critique of medicine/pharma. The cost of drug development has gone astronomically high these past decades, with billion dollar pipelines to account for the cost of failure. The pharma drug development model has not really evolved beyond a lottery system of testing random compounds to treat diseases, and going back/forth until the right permutation of a compound is found. This might have worked before for initial "easy" diseases (that had easy drug targets, or single gene mutations), but the problems we face now (Alzheimers, Cancer) are too complex for our lottery-based drug development system.
- thesash 15y agoI find this article troubling for two reasons: it fails to back up with evidence some of its boldest claims, and it suffers from the same problems presented by it's own argument. Claims like this one: > "First, all of the easy causes have been found, which means that scientists are now forced to search for ever-subtler correlations, mining that mountain of facts for the tiniest of associations." May be true, but the author presents no evidence to support them, with relevant studies, articles, etc.. The second, much more troubling problem however, is that the argument suffers fromt the very problem it presents! The author's conclusion that the returns on scientific research are diminishing due to an inherent flaw in conclusions being drawn from correlations-- is itself a correlation. He's correlating the increasing cost of research to the increasing difficulty of finding new correlations in the data. There are other, simpler, less circular and philosophical explanations for why the returns on pharmaceutical research have decreased, such as increasingly strict regulations and fear of risk on the part of regulatory organizations. See this TED talk, where Juan Enriquez talks about these issues: http://www.tedmed.com/videos-info?name=Juan_Enriquez_at_TEDMED_2011&q=updated&year=2011 http://www.tedmed.com/videos-info?name=Juan_Enriquez_at_TEDM...
- refurb 15y agoWow, that article was a little annoying. Correct me if I'm wrong, but I get the impression that he thinks our current approach to science is wrong due to our tendency to attribute cause and effect to things where we have no conclusive proof of cause and effect? Well, if he has a better suggestion on how to approach research, I'm all ears! First off, I don't think ANYONE who was involved with the development of torcetrapib thought it was a "slam dunk". The success rate of drugs that have reached phase III is only slightly north of 50%. Second, there is no way you could possibly figure out all the effects a particular drug has on the human body. You'd be doing research for the next 100 years and you still wouldn't come close. So what we do is we come up with a hypothesis (high HDL is good), we gather evidence in the most efficient manner we can (other drugs that raise HDL help prolong life in humans and animals), then we move forward with our BEST GUESS. That's how science works, you create a hypothesis, then test it. Are our hypotheses wrong sometimes? Of course. Do we learn something from the failures? Yes. Trying a being successful 10% of the time is far better than not trying at all and being successful 0% of the time. Merck's CETP inhibitor is in phase III right now and there is a chance that it will fail too. And I don't think any scientists feels that high HDL is the cause of reduced cardiac risks. A more accurate description would be to say "High HDL is associated with reduced cardiac risks, this drug increases HDL levels, so it stands a chance of reducing cardiac risks". I think the author does a bad job of describing how scientists approach their work. If anything a scientist would be the first to call out a claim that something _causes_ something else. That's how their trained!
- bmahmood 15y agoI think that's the problem he's pointing out though with medicine: that we're unable to account for all the side-effects, that our hypotheses are often wrong (in drug development, its practically like a lottery if you start at pre-clinical), and that these gambles on drug development are getting way to costly for the healthcare system. I think there needs to be revision of the experimental method overall, as the models of drug development in the 20th century simply aren't sustainable or efficient for the diseases of the 21st century.
- shubble 15y agoThe articles criticism I think stems from the same feeling of discomfort I got when I understood a bit better how drugs are developed. As a culture I think we have a certain faith in the medical system to save us from death, the same way previous generations looked to priests to save the spirit. The inference you mention 'high HDL is associated with low cardiac arrest, therefore a drug that increases HDL might help is more vague than a layman expects. It's like saying 'I want a safe car, and German tend to be safe, therefore I will buy a German' - it's valid in the absence of a real understanding of how to specify and select a safe car, but it's more vague than you'd be comfortable with. You expect an engineering company to be able to specify a safe car based on deep knowledge. But because our understanding of the disease, and of what different chemicals can do is incomplete, a drug company can't do that. Instead, they follow as many hints as they can to select a chemical that might work, and then advance it through a series of progressively more expensive trials until they are pretty sure it does more good than harm. That's a valid way of doing things, and at the moment it's all we can do. But it's not what a layman imagines, or certainly not what this one imagined. It undermines our sense of control - our sense that we are immortal and can get on with making an angry birds clone to get rich because there will be plenty of time to do the projects we want to after the payoff - it's not like we are going to die of heart disease, science has our back on that one! Or maybe I'm generalizing my personal feelings too much?
- marshray 15y agoI was helping do data analysis at a spine surgery clinic in the 90s. I remember when that healthy-person MRI disc study came out. It was interesting, but I don't think it slowed us down one bit. :-)
- adharmad 15y agoThe title itself is really bad - trial and error is the only way science works. You observe a cause and an effect, propose a theory, and tweak it based on more causes/effects. There are very few instances in the history of science where someone without any contact with actual experiment sat in a closed room and came up with an a theory that was eventually proved correct. If the author of the article was alive in the 1920s-1950s, and observed the chaotic scientific development of Quantum mechanics, he would have the exact same opinion that he has of the current state of medicinal research. I am curious to see if the author has any actual suggestions on how to do science.
- thisisnotmyname 15y agoThe standard test for causality (at least in biology, where I work) is to test for rescue. You first establish that under conditions a, event b happens. You then reverse a, and observe b returning to normal. This, followed by controls demonstrating that you're only changing a and are actually measuring b serve as a stringent test for causation.
- ggwicz 15y agoScience isn't failing us. Big bureaucracies getting in the way of science are failing us. Even just to experiment with semi-controlled drugs, for example, is a massive headache and ungodly expensive. Everybody wants to get into journals and paid by government institutes, so a lot of science being done is very safe and not venturing out to the controversial as much. Studies are being funded by corporations looking to get some cooked data to support their bullshit. Science has never failed us, as science is inherently just human curiosity. The continuing structural growth and big bureaucratic developments that many governments, schools, and businesses are implementing are failing us. "Bureaucracy is the art of making the possible impossible." - Javier Pascual Science can't fail. It only illuminates. But a lot of shady assholes run this place, and the last thing they want is a light shone on them.
- 6ren 15y agoThe author seems surprised that we don't understand everything. Feynman: Nature's imagination is greater than your imagination. A more interesting limit is relationships that cannot be understood in isolation. When these exceed our working memory, we can't perform our usual trick of hierarchical abstraction to look at one part or one aspect at a time. Perhaps that could be our limit of intuitive understanding, unless we come up with a fundamentally new way of understanding complexity.
- saturn 15y ago> At any given time, about 10 percent of Americans are completely incapacitated by their lumbar regions How can this possibly be true? Completely incapacitated, ie bedridden and immobile? Surely the country would be in near collapse if 30+ million of its inhabitants were randomly bedridden at any one time just by that one medical issue.
- giardini 15y agoThank goodness for aspirin, ibufprofen and acetaminopen! It is an overstatement. But if you merely ask around, especially of men, you will likely find a majority of them have had serious back pain and have some trepidation that it might, at any time, for little or no reason, return. I've got to try to get my socks on, now.
- guscost 15y agoOdds of this article containing the answer? Not good.
- dean 15y agoThis is a very wrong-headed article. The author seems to think that science should be able to get the right answers on the first try, and that if we can't, it's somehow a failure of science and any attempts at understanding should be abandoned. I think he has a basic misunderstanding of science. He doesn't realize that "made up stories" to explain how things work are just a starting point to understanding. They have to be tested and revised and re-tested until we come up with an explanation that reliably predicts how something works. And failures are an integral part of the process. Failures advance understanding. It reminds me of the quote by Thomas Edison, after a thousand failed experiments, "We now know a thousand ways not to build a light bulb".
- jbjohns 15y agopg one wrote in an essay about how if you manage to stumble onto something tabu you probably found something interesting (heavily paraphrased). A lot of people are seriously offended at this article.... just sayin'.