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This isn’t the first time this has happened, that big data sets full of personal information – supposedly obscured, or de-identified, as the process is called – have been reverse engineered to reveal some or even all of the identities contained within. It makes you wonder: Is there really such a thing as a truly anonymous data set in the age of big data?

That might sound like a bore, but think about it this way: there’s more than taxi cab data at stake here. Pretty much everything you do on the Internet these days is a potential data set. And data has value. The posts you like on Facebook, your spending habits as tracked by Mint, the searches you make on Google – the argument goes that the social, economic and academic potential of sharing these immensely detailed so-called “high dimensional” data sets with third parties is too great to ignore.

University of Colorado Law School associate professor Paul Ohm’s 2009 paper on the topic made the bold claim that “data can be either useful or perfectly anonymous but never both.”

Data crunching has grown so sophisticated and powerful, privacy researchers now warn that tracing identities from a pool of supposedly "anonymized" data is not just a possibility, it's a certainty.

"It is depressingly hard to try to anonymize data in a way that resists identification by a committed adversary," Arvind Narayanan, a privacy researcher at Princeton University, told NBC News.

such as the DuckDuckGo search engine, whose motto is "We don't track you" — gain popularity, an incentive would arise.

So far, many companies have tried to dispel such fears by noting that the data they gather, store and analyze remains "anonymous." But that, as it turns out, is not entirely accurate, in that it sells the power of data analysis radically short. Take the analysis of anonymous movement profiles, for example. According to a current study by the online journal Scientific Reports, our mobility patterns are so different that that they can be used to "uniquely identify 95 percent of the individuals." The more data is in circulation and available for analysis, the more likely it is that anonymity becomes "algorithmically impossible," says Princeton computer scientist Arvind Narayanan. In his blog, Narayanan writes that only 33 bits of information are sufficient to identify a person.

A study by New York advertising agency Ogilvy One concludes that 75 percent of respondents don't want companies to store their personal data, while almost 90 percent were opposed to companies tracking their surfing behavior on the Internet.

Is it truly desirable for cultural assets like TV series or music albums to be tailored to our predicted tastes by means of data-driven analyses? What happens to creativity, intuition and the element of surprise in this totally calculated world?

The problem, of course, is that those students represent the precise group MOOCs are meant to serve. “MOOCs were supposed to be the device that would bring higher education to the masses,” Jonathan Rees noted. “However, the masses at San Jose State don’t appear to be ready for the commodified, impersonal higher education that MOOCs offer.” Thrun’s cavalier disregard for the SJSU students reveals his true vision of the target audience for MOOCs: students from the posh suburbs, with 10 tablets apiece and no challenges whatsoever—that is, the exact people who already have access to expensive higher education. It is more than galling that Thrun blames students for the failure of a medium that was invented to serve them, instead of blaming the medium that, in the storied history of the “correspondence” course (“TV/VCR repair”!), has never worked. For him, MOOCs don’t fail to educate the less privileged because the massive online model is itself a poor tool. No, apparently students fail MOOCs because those students have the gall to be poor, so let’s give up on them and move on to the corporate world, where we don’t have to be accountable to the hoi polloi anymore, or even have to look at them, because gross.

SG_Debug && SG_Debug.pagedebug && window.console && console.log && console.log('[' + (new Date()-SG_Debug.initialTime)/1000 + ']' + ' Bottom of header.jsp'); SlateEducationGetting schooled.Nov. 19 2013 11:43 AM The King of MOOCs Abdicates the Throne 7.3k 1.2k 101 Sebastian Thrun and Udacity’s “pivot” toward corporate training. By Rebecca Schuman &nbsp; Sebastian Thrun speaks during the Digital Life Design conference on Jan. 23, 2012, in Munich. Photo by Johannes Simon/Getty Images requirejs(["jquery"], function($) { if ($(window).width() < 640) { $(".slate_image figure").width("100%"); } }); Sebastian Thrun, godfather of the massive open online course, has quietly spread a plastic tarp on the floor, nudged his most famous educational invention into the center, and is about to pull the trigger. Thrun—former Stanford superprofessor, Silicon Valley demigod, and now CEO of online-course purveyor Udacity—just admitted to Fast Company’s openly smitten Max Chafkin that his company’s courses are often a “lousy product.” Rebecca Schuman Rebecca Schuman is an education columnist for Slate. Follow This is quite a “pivot” from the Sebastian Thrun, who less than two years ago crowed to Wired that the unstemmable tide of free online education would leave a mere 10 purveyors of higher learning in its wake, one of which would be Udacity. However, on the heels of the embarrassing failure of a loudly hyped partnership with San Jose State University, the “lousiness” of the product seems to have become apparent. The failures of massive online education come as no shock to those of us who actually educate students by being in the same room wit

nd why the answer is not the MOOC, but the tiny, for-credit, in-person seminar that has neither a sexy acronym nor a potential for huge corporate partnerships.

According to the data, students exposed to lecture more than other classroom activities showed more significant learning gains than their peers

Burgan points out that “being clueless in a discussion class is much more embarrassing and destructive of a student’s self confidence than struggling to understand in the anonymity of a lecture.” As a college student, I was often advised by well-meaning adults to sign-up for seminars rather than lectures in order to get “face time.” To be perfectly honest, though, the lecture format, far more than the noisy seminar, enabled me to think deeply about a topic rather than being distracted by poorly planned and redundant comments from peers (often aggravated by a teacher who is reluctant, for fear of being too top-down in terms of pedagogy, to deflect them).

They are delivered on engaging topics, by engaging people, and they offer time for reflection by the audience. Ever since Susan Cain delivered her 2012 TED talk “The Power of Introverts,”