March 31, 2015 1 Comment
Haven’t done an Amazing Maps map in a while. How can you not love a map of Meth Labs per county:
Politics, parenting, science, education, and pretty much anything I find interesting
So, I really enjoyed watching the Jinx, and I certainly think Robert Durst likely killed all those people, but I was not entirely persuaded by the handwriting analysis that proved to be so crucial to how events ultimately unfolded. The handwriting expert was given a target item and an item known to come from Durst and looked for similarities and found them. I get that this is how a lot of forensic “science” works, but the problem is that it’s not actually science. Oh, I do think it is indicative and telling. But that’s it; nothing more. Certainly not “scientific” evidence that would prove something beyond a reasonable doubt (e.g., DNA).
Actual science (and good social science!) seeks to disconfirm hypotheses, not confirm them, as is the case in the handwriting analysis. A genuinely scientific analysis would try and rule out everybody except Durst, leaving no conclusion but that he must be the writer. That’s how DNA works, you are essentially ruling out billions of other people until the only reasonable conclusion is that you have the DNA of the actual subject. And, that’s what science is about– ruling out other possible explanations until you are left with a sole reasonable one. And, of course, why science is never truly done, because you can always find more explanations to rule out.
Anyway, I’ve written plenty about the lack of science in forensic science, but actually seeing that handwriting analysis seeking confirmation, rather than disproof, really struck me while watching the Jinx. And this forum in the NYT about the matter and how we judge forensic science gave me a good excuse to write about it. For me, this is the key contributor:
The National Commission on Forensic Science was formed in response to widespread concerns that forensic evidence that lacked any meaningful scientific basis was being regularly permitted in trials. The concerns were not just about the “expert” witnesses, but about the judges who, according to the National Academy of Sciences report that led to the commission’s creation, have been “utterly ineffective” in assessing the quality of research behind the evidence.
And, it wasn’t that long ago, but can never really link too often to Radley Balko’s terrific series on how much junk forensic science there is and how it gets way to much respect from judges.
Recent National Geographic photo of the day (as if this photo isn’t awesome enough, the title is just perfect):
Photograph by Souvik Kundu, National Geographic Your Shot
It’s a rare and privileged experience to witness the interaction of tiger cubs in the wild, says Souvik Kundu, a member of our Your Shot photo community. After learning that a tigress had given birth to cubs in India’s Ranthambore Tiger Reserve, Kundu visited the sanctuary a number of times to photograph the family. On this day his group was treated to an “unforgettable display of tender bonding,” with “the cubs engaged in several bouts of play-fighting under the watchful eyes of the mother.”
Recently, there was a great Op-Ed by UNC system president Tom Ross. He does such a good job laying out the real value of higher education that you can see why the Republican-dominated UNC Board of Governors decided a “new direction” was needed. Obviously, the only real value of higher ed is to create worker-drones for specific jobs that will surely stay static over a lifetime. Ross:
We increasingly view our colleges and universities as nothing more than factories that must demonstrate an immediate return on investment for consumers. Places that only train people for the workforce. We hear constant calls to drive out costs and produce more product at less cost. There is far less talk about academic quality and excellence and more about operational efficiency. We seem to measure the value of education to our students only in immediate post-graduation earnings. Again, I am all for accountability and efficiency, but if that is our sole focus, we may fail to provide the return on investment that is perhaps most valuable for our students – the ability to think, reason and communicate more effectively… [emphases mine]
In some significant measure, our nation has been great because our higher education system has been the best in the world. Our colleges and universities have been the foundation of our democratic society. We have produced talent that remained productive over a lifetime – not because of particular skills taught, not because of preparation for a specific job, but instead because our students acquired the ability to analyze, work with others, understand our world, communicate effectively and appreciate the value of learning throughout one’s life. It is this creative, innovative, adaptable talent that has been our competitive advantage against the world.
Today, however, America’s societal commitment to investing in higher education appears to have eroded. We now spend about 2 percent more on higher education in real dollars than we spent 25 years ago, even though enrollment in our universities and colleges has grown by over 60 percent during that period. We spend about 30 percent less per student today than we did 25 years ago. As a nation, we are disinvesting in higher education, and we are beginning to pay the price.
Great stuff! If you care about higher ed, you really should read the whole thing. Meanwhile, Duke Professor Jedidiah Purdy has a nice piece in the New Yorker outlining the “Ayn Rand” approach to higher ed that the Republicans leading our state would like to take:
For several years, there have been indications that the state’s new leaders want to change the mission of public higher education in North Carolina. In 2013, the Republican governor, Pat McCrory, told William Bennett, a conservative talk-show host and former Secretary of Education, that the state shouldn’t “subsidize” courses in gender studies or Swahili (that is, offer them at public universities). The following year, he laid out his agenda in a speech at the University of North Carolina at Chapel Hill. Using the language of business schools, he urged his audience to “reform and adapt the U.N.C. brand to the ever-changing competitive environment of the twenty-first century” and to “[hone] in on skills and subjects employers need.” McCrory also had a warning for faculty members whose subjects could be understood as political: “Our universities should not be used to indoctrinate our students to become liberals or conservatives, but should teach a diversity of opinions which will allow our future leaders to decide for themselves.”…
Some version of a cost-benefit calculus for learning is inevitable in a precarious economy with expensive, debt-funded education. But to reconceive of public universities as the meeting place of two markets—students investing in their own “human capital” and private investors looking to influence curricula—is another thing altogether. The point of humanities education is to foster independent, critical thought and broad historical perspective, both in students and in university culture. A successful humanities education makes the obvious questionable and shows that the present is neither eternal nor inevitable. These are not goals designed to pass market tests or bend to the ideologies of wealthy donors.
And, as long as I’m at it, Fareed Zakaria with a nice piece on how we have come to “dangerously” over-value STEM education (I admit to being a little bit guilty of this myself):
This dismissal of broad-based learning, however, comes from a fundamental misreading of the facts — and puts America on a dangerously narrow path for the future. The United States has led the world in economic dynamism, innovation and entrepreneurship thanks to exactly the kind of teaching we are now told to defenestrate. A broad general education helps foster critical thinking and creativity. Exposure to a variety of fields produces synergy and cross fertilization. Yes, science and technology are crucial components of this education, but so are English and philosophy…
Innovation is not simply a technical matter but rather one of understanding how people and societies work, what they need and want. America will not dominate the 21st century by making cheaper computer chips but instead by constantly reimagining how computers and other new technologies interact with human beings.
Strong case. Of course, I’d argue for more social science and less humanities :-). Regardless, I’m not about about to under-value STEM education. It’s great and super-worthwhile. And so is having some university degrees that lead clearly and directly to in-demand jobs. But it seems pretty clear to me that devaluing an actual liberal arts education is not the way to go.
March 30, 2015 Leave a comment
I really want to go to a drag race sometime. Seriously. Though I would not want to see anything as dramatic as this (from the Telegraph’s week in pictures):
NHRA top fuel dragster driver Larry Dixon crashes after his car broke in half during qualifying for the Gatornationals at Auto Plus Raceway at Gainesville…Picture: USA Today Sports
March 30, 2015 Leave a comment
Nice editorial in the Post on why requiring genetically-modified food labeling is a bad idea:
E IGHTY-EIGHT percent of scientists polled by the Pew Research Center in January said genetically modified food is generally safe to eat. Only 37 percent of the public shared that view. The movement to require genetically modified food products to be labeled both reflects and exploits this divergence between informed opinion and popular anxiety. [all emphases mine]
Mandated labeling would deter the purchase of genetically modified (GM) food when the evidence calls for no such caution…
The GM-food debate is a classic example of activists overstating risk based on fear of what might be unknown and on a distrust of corporations. People have been inducing genetic mutations in crops all sorts of other ways for a long time — by, for example, bathing plants in chemicals or exposing them to radiation. There is also all sorts of genetic turbulence in traditional selective plant breeding and constant natural genetic variation.
Yet products that result from selective gene splicing — which get scrutinized before coming to market — are being singled out as high threats. If they were threatening, one would expect experts to have identified unique harms to human health in the past two decades of GM-crop consumption. They haven’t. Unsurprisingly, institutions such as the National Academy of Sciences and the World Health Organization have concluded that GM food is no riskier than other food.
Promoters of compulsory GM food labeling claim that consumers nevertheless deserve transparency about what they’re eating. But given the facts, mandatory labeling would be extremely misleading to consumers — who, the Pew polling shows, exaggerate the worries about “Frankenfood” — implying a strong government safety concern where one does not exist…
This isn’t just a matter of saving consumers from a little unnecessary expense or anxiety. If GM food becomes an economic nonstarter for growers and food companies, the world’s poorest will pay the highest price. GM crops that flourish in challenging environments without the aid of expensive pesticides or equipment can play an important role in alleviating hunger and food stress in the developing world — if researchers in developed countries are allowed to continue advancing the field.
Yeah, all that. I just finished my Kashi Go Lean for breakfast. It actually annoys me every time I see the big “GMO Free” label on the box. It’s healthy because it’s high in fiber, protein, and whole grains; not because those grains were not genetically modified. If Kashi wants to keep doing this, fine; companies put all sorts of information on the sides of their boxes that are not actually related to nutrition. What we don’t need is the government implicitly telling consumers that GMO is somehow related to the health of our food. It’s simply not.