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The largest prime number yet has been discovered — and it's 17,425,170 digits long. The new prime number crushes the last one discovered in 2008, which was a paltry 12,978,189 digits long.

The number — 2 raised to the 57,885,161 power minus 1 — was discovered by University of Central Missouri mathematician Curtis Cooper as part of a giant network of volunteer computers

"It's analogous to climbing Mt. Everest," said George Woltman, the retired, Orlando, Fla.-based computer scientist who created GIMPS. "People enjoy it for the challenge of the discovery of finding something that's never been known before."

THE problem is that a math model, like a metaphor, is a simplification. This type of modeling came out of the sciences, where the behavior of particles in a fluid, for example, is predictable according to the laws of physics.

In so many Big Data applications, a math model attaches a crisp number to human behavior, interests and preferences. The peril of that approach, as in finance, was the subject of a recent book by Emanuel Derman, a former quant at Goldman Sachs and now a professor at Columbia University. Its title is “Models. Behaving. Badly.”

A report last year by the McKinsey Global Institute, the research arm of the consulting firm, projected that the United States needed 140,000 to 190,000 more workers with “deep analytical” expertise and 1.5 million more data-literate managers, whether retrained or hired.

Manjoo offers this security-centric path for folks who are anxious about the service being "one the most intrusive technologies ever built," and believe that "the very idea of making Facebook a more private place borders on the oxymoronic, a bit like expecting modesty at a strip club". Bottom line: stop tuning in and start dropping out if you suspect that the culture of oversharing, digital narcissism, and, above all, big-data-hungry, corporate profiteering will trump privacy settings.

Angwin plans on keeping a bare-bones profile. She'll maintain just enough presence to send private messages, review tagged photos, and be easy for readers to find. Others might try similar experiments, perhaps keeping friends, but reducing their communication to banal and innocuous expressions. But, would such disclosures be compelling or sincere enough to retain the technology's utility?

The other unattractive option is for social web users to willingly pay for connectivity with extreme publicity.

Facebook’s new plan to host news publications’ stories directly is not only about page views, advertising revenue or the number of seconds it takes for an article to load. It is about who owns the relationship with readers.

Tech companies have always stepped on one another’s toes to try to become people’s gateway to the digital world — the only place people need to go to get what they want.

all kinds of companies are now becoming tech companies

IMAGINE a world in which we are assigned a number that indicates how influential we are. This number would help determine whether you receive a job, a hotel-room upgrade or free samples at the supermarket. If your influence score is low, you don’t get the promotion, the suite or the complimentary cookies.

it’s not enough to attract Twitter followers — you must inspire those followers to take action.

“Now you are being assigned a number in a very public way, whether you want it or not,”

the capacity for original and creative thinking is markedly stymied by stray thoughts, obsessive ruminations and other forms of “mental load.”

Many psychologists assume that the mind, left to its own devices, is inclined to follow a well-worn path of familiar associations. But our findings suggest that innovative thinking, not routine ideation, is our default cognitive mode when our minds are clear.

We found that a high mental load consistently diminished the originality and creativity of the response: Participants with seven digits to recall resorted to the most statistically common responses (e.g., white/black), whereas participants with two digits gave less typical, more varied pairings (e.g., white/cloud).

declared that “a strong news industry is also critical to building an informed community.”

Unfortunately, his memo ignored two major points — the role that Facebook and other technology platforms are playing in inadvertently damaging local news media, and the one way they could actually save journalism: with a massive philanthropic commitment.

As advertising spending shifted from print, TV and radio to the internet, the money didn’t mostly go to digital news organizations. Increasingly, it goes to Facebook and Google.

we have sacrificed conversation for mere connection.

the little devices most of us carry around are so powerful that they change not only what we do, but also who we are.

A businessman laments that he no longer has colleagues at work. He doesn’t stop by to talk; he doesn’t call. He says that he doesn’t want to interrupt them. He says they’re “too busy on their e-mail.”

Those who frequently updated their Facebook status, tagged themselves in photos and had large numbers of virtual friends, were more likely to exhibit narcissistic traits, the study found. Another study found that people with high levels of narcissism were more likely to spend more than an hour a day on Facebook, and they were also more likely to post digitally enhanced personal photos. But what the research doesn’t answer is whether Facebook attracts narcissists or turns us into them.

researchers found, to their surprise, that frequency of Facebook use, whether it was for personal status updates or to connect with friends, was not associated with narcissism. Narcissism per se was associated with only one type of Facebook user — those who amassed unrealistically large numbers of Facebook friends.

frequent Facebook users were more likely to score high on “openness” and were less concerned about privacy. So what seems like self-promoting behavior may just reflect a generation growing up in the digital age, where information — including details about personal lives — flows freely and connects us.

Facebook’s inventory consists of personal data — yours and mine.

Facebook makes money by selling ad space to companies that want to reach us. Advertisers choose key words or details — like relationship status, location, activities, favorite books and employment — and then Facebook runs the ads for the targeted subset of its 845 million users

The magnitude of online information Facebook has available about each of us for targeted marketing is stunning. In Europe, laws give people the right to know what data companies have about them, but that is not the case in the United States.

There will be no place to go but the unemployment line.

There will be no place to go but the unemployment line.

at this point our tale takes a darker turn. What do we do over the next few decades as robots become steadily more capable and steadily begin taking away all our jobs?

Intelligence, according to Gardner, is of eight types - verbal-linguistic, logical-mathematical, musical-rhythmic, visual-spatial, bodily-kinesthetic, interpersonal, intrapersonal, and naturalistic; existential and moral intelligence were added as afterthoughts in the definition of Intelligence. This is the first in a series of posts that explore and understand how each of the above forms of intelligence is affected by technology-mediated education.

Verbal-linguistic Intelligence involves sensitivity to spoken and written language, the ability to learn languages, and the capacity to use language to accomplish goals. Such intelligence is fostered by three specific activities: reading, writing and interpersonal communication - both written and oral.

Technology allows addition of multisensory elements that provide meaningful contexts to facilitate comprehension, thus expanding the learning ground of language and linguistics.

Even the highly gifted students in my Shakespeare classes at Harvard are less likely to be touched by the subtle magic of his words than I was so many years ago or than my students were in the 1980s in Berkeley, Calif. What has happened? It is not that my students now lack verbal facility. In fact, they write with ease, particularly if the format is casual and resembles the texting and blogging that they do so constantly. The problem is that their engagement with language, their own or Shakespeare’s, often seems surprisingly shallow or tepid.

There are many well-rehearsed reasons for the change: the rise of television followed by the triumph of digital technology, the sending of instant messages instead of letters, the ‘‘visual turn’’ in our culture, the pervasive use of social media. In their wake, the whole notion of a linguistic birthright could be called quaint, the artifact of particular circumstances that have now vanished

For my parents, born in Boston, the English language was a treasured sign of arrival and rootedness; for me, a mastery of Shakespeare, the supreme master of that language, was like a purchased coat of arms, a title of gentility tracing me back to Stratford-upon-Avon.

The breach could potentially affect every federal agency, officials said.

"yet another indication of a foreign power probing successfully and focusing on what appears to be data that would identify people with security clearances".

The cyber threat from hackers, criminals, terrorists and state actors is one of the greatest challenges we face on a daily basis, and it's clear that a substantial improvement in our cyber databases and defences is perilously overdue."

Facebook said in a blog post it is tweaking the all-important algorithm that determines what posts a user sees, with an eye toward featuring topics that interest you, whether you “like” them or not.

The change takes advantage of the fact that Facebook doesn’t just track how long you pore over your friend’s vacation pictures or a news article – it also compares that to your typical reading patterns. It then promotes content that captures more of your attention.

Facebook said data on how long people spend on posts is not shared with publishers or advertisers. Users cannot block Facebook from tracking their reading habits, the company said.

Some of the top digital designs of the moment, both in school and in the rest of life, embed the underlying message that we understand the brain and its workings. That is false. We don’t know how information is represented in the brain. We don’t know how reason is accomplished by neurons. There are some vaguely cool ideas floating around, and we might know a lot more about these things any moment now, but at this moment, we don’t.

At school, standardized testing rules. Outside school, something similar happens. Students spend a lot of time acting as trivialized relays in giant schemes designed for the purposes of advertising and other revenue-minded manipulations. They are prompted to create databases about themselves and then trust algorithms to assemble streams of songs and movies and stories for their consumption.

What is really lost when this happens is the self-invention of a human brain. If students don’t learn to think, then no amount of access to information will do them any good.

Neurologically, how does our brain adapt itself to new technologies? Nicholas Carr: A couple of types of adaptations take place in your brain. One is a strengthening of the synaptical connections between the neurons involved in using that instrument, in using that tool. And basically these are chemical – neural chemical changes. So you know, cells in our brain communicate by transmitting electrical signals between them and those electrical signals are actually activated by the exchange of chemicals, neurotransmitters in our synapses. And so when you begin to use a tool, for instance, you have much stronger electrochemical signals being processed in those – through those synaptical connections. And then the second, and even more interesting adaptation is in actual physical changes,anatomical changes. Your neurons, you may grow new neurons that are then recruited into these circuits or your existing neurons may grow new synaptical terminals. And again, that also serves to strengthen the activity in those, in those particular pathways that are being used – new pathways. On the other hand, you know, the brain likes to be efficient and so even as its strengthening the pathways you’re exercising, it’s pulling – it’s weakening the connections in other ways between the cells that supported old ways of thinking or working or behaving, or whatever that you’re not exercising so much.

And it was only in around the year 800 or 900 that we saw the introduction of word spaces. And suddenly reading became, in a sense, easier and suddenly you had to arrival of silent reading, which changed the act of reading from just transcription of speech to something that every individual did on their own. And suddenly you had this whole deal of the silent solitary reader who was improving their mind, expanding their horizons, and so forth. And when Guttenberg invented the printing press around 1450, what that served to do was take this new very attentive, very deep form of reading, which had been limited to just, you know, monasteries and universities, and by making books much cheaper and much more available, spread that way of reading out to a much larger mass of audience. And so we saw, for the last 500 years or so, one of the central facts of culture was deep solitary reading.

What the book does as a technology is shield us from distraction. The only thinggoing on is the, you know, the progression of words and sentences across page after page and so suddenly we see this immersive kind of very attentive thinking, whether you are paying attention to a story or to an argument, or whatever. And what we know about the brain is the brain adapts to these types of tools.

flirtatious texts have replaced phone calls, and Web sites like Facebook have replaced high school reunions as a way to reconnect with an old flame.

“We use new technologies in romantic relationships all the time,” said Dr. Baym. “When two people meet and they’re interested in developing the relationship, they go to text messages really fast as a way to safely negotiate the relationship.”

slight shifts in infidelity rates among young people and women suggest that digital media may be playing a role. Anecdotally, therapists report that electronic contact via Facebook, e-mail and text messages has allowed women in particular to form more intimate relationships.