Last fall the kind of education once reserved for students attending the nation’s elite colleges and universities became available to everyone, thanks to Stanford professors Peter Norvig and Sebastian Thrun. They leveled the higher education playing field by offering a virtual version of their reknowned Stanford class, Intro to Artificial Intelligence to the world for free. Over 160,000 students from around the globe signed up for the 10-week class and the enthusiasm around it sparked a MOOC—massive open online course—renaissance.

In this six-minute TED talk, Norvig shares what they learned about teaching to a global classroom. He describes how they borrowed innovations and learnings from various education entities, like the Khan Academy and Teach For America to ensure they had a class that would be “equal or better in quality” than what they offered on campus. They also tapped the expertise of individuals like Benjamin Bloom’s findings on one-on-one tutoring and Harvard professor Eric Mazur, an advocate of peer learning. “Peers can be the best teachers, because they’re the ones that remember what it’s like to not understand,” says Norvig.


There’s plenty of speculation around whether Norvig’s online classes, as well as subsequently announced MOOCs like edX, the joint project between MIT and Harvard, will replace traditional higher education. Norvig says it’s ironic that although they set out to disrupt traditional higher education, their online classes are more like a really well-done traditional college class than most folks imagine.

  • Man’s dog suddenly becomes protective of his wife, Internet clocks the reason right away
    Dogs have impressive observational powers.Photo credit: Canva

    Reddit user Girlfriendhatesmefor’s three-year-old pitbull, Otis, had recently become overprotective of his wife. So he asked the online community if they knew what might be wrong with the dog.

    “A week or two ago, my wife got some sort of stomach bug,” the Reddit user wrote under the subreddit /r/dogs. “She was really nauseous and ill for about a week. Otis is very in tune with her emotions (we once got in a fight and she was upset, I swear he was staring daggers at me lol) and during this time didn’t even want to leave her to go on walks. We thought it was adorable!”

    His wife soon felt better, butthe dog’s behavior didn’t change.

    pregnancy signs, dogs and pregnancy, pitbull behavior, pet intuition, dog overprotection, Reddit stories, viral Reddit, dog instincts, canine emotions, dog owner tips
    Otis knew before they did. Canva

    Girlfriendhatesmefor began to fear that Otis’ behavior may be an early sign of an aggression issue or an indication that the dog was hurt or sick.

    So he threw a question out to fellow Reddit users: “Has anyone else’s dog suddenly developed attachment/aggression issues? Any and all advice appreciated, even if it’s that we’re being paranoid!”

    The most popular response to his thread was by ZZBC.

    Any chance your wife is pregnant?

    ZZBC | Reddit

    The potential news hit Girlfriendhatesmefor like a ton of bricks. A few days later, Girlfriendhatesmefor posted an update and ZZBC was right!

    “The wifey is pregnant!” the father-to-be wrote. “Otis is still being overprotective but it all makes sense now! Thanks for all the advice and kind words! Sorry for the delayed reply, I didn’t check back until just now!”

    Redditors responded with similar experiences.

    Anecdotal I know but I swear my dog knew I was pregnant before I was. He was super clingy (more than normal) and was always resting his head on my belly.

    realityisworse | Reddit

    So why do dogs get overprotective when someone is pregnant?

    Jeff Werber, PhD, president and chief veterinarian of the Century Veterinary Group in Los Angeles, told Health.com that “dogs can also smell the hormonal changes going on in a woman’s body at that time.” He added the dog may “not understand that this new scent of your skin and breath is caused by a developing baby, but they will know that something is different with you—which might cause them to be more curious or attentive.”

    The big lesson here is to listen to your pets and to ask questions when their behavior abruptly changes. They may be trying to tell you something, and the news may be life-changing.

    This article originally appeared last year.

  • Throughout history, women have stood up and fought to break down barriers imposed on them from stereotypes and societal expectations. The trailblazers in these photos made history and redefined what a woman could be. In doing so, they paved the way for future generations to stand up and continue to fight for equality.

  • ,

    Why mass shootings spawn conspiracy theories

    Mass shootings and conspiracy theories have a long history.

    While conspiracy theories are not limited to any topic, there is one type of event that seems particularly likely to spark them: mass shootings, typically defined as attacks in which a shooter kills at least four other people.

    When one person kills many others in a single incident, particularly when it seems random, people naturally seek out answers for why the tragedy happened. After all, if a mass shooting is random, anyone can be a target.

    Pointing to some nefarious plan by a powerful group – such as the government – can be more comforting than the idea that the attack was the result of a disturbed or mentally ill individual who obtained a firearm legally.


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