Airline Routes Are a Pretty Good Predictor of Twitter Connections

How a Guy From a Montana Trailer Park Overturned 150 Years of Biology

Ed Yong

Biology textbooks tell us that lichens are alliances between two organisms—a fungus and an alga. They are wrong.

In 1995, if you had told Toby Spribille that he’d eventually overthrow a scientific idea that’s been the stuff of textbooks for 150 years, he would have laughed at you. Back then, his life seemed constrained to a very different path. He was raised in a Montana trailer park, and home-schooled by what he now describes as a “fundamentalist cult.” At a young age, he fell in love with science, but had no way of feeding that love. He longed to break away from his roots and get a proper education.

At 19, he got a job at a local forestry service. Within a few years, he had earned enough to leave home. His meager savings and non-existent grades meant that no American university would take him, so Spribille looked to Europe.

The Mystery of Why Japanese People Are Having So Few Babies

Alana Semuels

Many point to unromantic 20-somethings and women’s entry into the workforce, but an overlooked factor is the trouble young men have in finding steady, well-paid jobs.

TOKYO—Japan’s population is shrinking. For the first time since the government started keeping track more than a century ago, there were fewer than 1 million births last year, as the country’s population fell by more than 300,000 people. The blame has long been put on Japan’s young people, who are accused of not having enough sex, and on women, who, the narrative goes, put their careers before thoughts of getting married and having a family.

But there’s another, simpler explanation for the country’s low birth rate, one that has implications for the U.S.: Japan’s birth rate may be falling because there are fewer good opportunities for young people, and especially men, in the country’s economy. In a country where men are still widely expected to be breadwinners and support families, a lack of good jobs may be creating a class of men who don’t marry and have children because they—and their potential partners—know they can’t afford to.

Policemen are seen near the Israeli embassy in Amman. — Reuters

An Attack at the Israeli Embassy in Jordan

J. Weston Phippen

The shooting at the compound in Amman may be related to recent protests over the Al-Aqsa Mosque.

Two people were wounded and one person died Sunday after a shooting at the Israeli embassy in Jordan’s capital, Amman. There are few details on the incident, and the motive is still under investigation. Police said one of the injured was an Israeli, and the other two victims were Jordanians, one of whom died. Both Jordanians worked for a furniture company and had entered the embassy’s compound just before the shooting and were working in one of the residential buildings on site.

Israeli authorities evacuated staff at the embassy, which is located in a wealthy neighborhood and is heavily guarded. Israeli authorities are not commenting on the shooting.

Nothing has been confirmed, but the attack could be linked to recent protests over the Al-Aqsa Mosque in Jerusalem. The site has been at the heart of mass protests, started after the Israeli government installed metal detectors at the mosque’s entrance. Israel says they’re necessary for protection after three militants earlier this month attacked and killed two Israeli guards. Muslim leaders see the metal detectors as a challenge to a pact, under which a Muslim organization based in Jordan controls the holy site.

Steffen Kugler / Bundesregierung via Reuters

Donald Trump's Defenders on the Left

Peter Beinart

Why some progressives are minimizing Russia’s election meddling

When it comes to possible collusion with Russia, Donald Trump’s most interesting defenders don’t reside on the political right. They reside on the political left.

Sean Hannity and Newt Gingrich aren’t defending a principle. They’re defending a patron. Until recently they were ultra-hawks. Now, to downplay Russia’s meddling in the 2016 elections, they sound like ultra-doves. All that matters is supporting their ally in the White House.

For left-wing defenders like Max Blumenthal and Glenn Greenwald, by contrast, ideology is king. Blumenthal and Greenwald loathe Trump. But they loathe hawkish foreign policy more. So they minimize Russia’s election meddling to oppose what they see as a new Cold War.

Hugh Thompson / Katie Martin / The Atlantic

On Teaching, but Not Loving, Jane Austen

Patricia A. Matthew

I used to adore the Pride and Prejudice author. But over the years I’ve grown more ambivalent toward her and the fervor for her work.

I once confessed to an audience gathered for a pre-show talk about Pride and Prejudice that I felt a bit salty to see so many of them in attendance. A few months earlier, I explained, I’d given an absolutely fascinating lecture on Mary Shelley to maybe five people, one of whom was my Aunt Carmen. The crowd for Jane Austen—and it was a crowd—laughed. A mix of students, folks from the surrounding towns, and my colleagues were there to see a stage adaptation of what is arguably the author’s most popular novel. It was my job to introduce the performance, and I was terrified. It’s no small thing to talk about Austen in public. There’s always a cluster of people who have been reading her since before they could walk, and they not only have strong opinions but also know her and her writing like my mother knew the Bible.

Marion Tinsley, the world's greatest checkers player — AP / Zak Bickel / The Atlantic

How Checkers Was Solved

Alexis C. Madrigal

The story of a duel between two men, one who dies, and the nature of the quest to build artificial intelligence

Marion Tinsley—math professor, minister, and the best checkers player in the world—sat across a game board from a computer, dying.

Tinsley had been the world’s best for 40 years, a time during which he'd lost a handful of games to humans, but never a match. It's possible no single person had ever dominated a competitive pursuit the way Tinsley dominated checkers. But this was a different sort of competition, the Man-Machine World Championship.

His opponent was Chinook, a checkers-playing program programmed by Jonathan Schaeffer, a round, frizzy-haired professor from the University of Alberta, who operated the machine. Through obsessive work, Chinook had become very good. It hadn't lost a game in its last 125—and since they’d come close to defeating Tinsley in 1992, Schaeffer’s team had spent thousands of hours perfecting his machine.

Tyler, the Creator at the 2011 Video Music Awards — AP / Chris Pizzello

The Classic Queer Paradox of Tyler, the Creator

Spencer Kornhaber

On Flower Boy the rapper suggests he’s not straight—and struggles with a stigma he helped propagate.

Tyler, the Creator became famous, in part, for being hateful. When his rap collective Odd Future Wolf Gang Kill Them All (“Odd Future” is fine) caught buzz around 2010, it was because of their delirious energy and Eminem-like love of mayhem. But it was their threats against women and “faggots,” delivered in song and on social media, that elevated them from subculture phenomenon to become essay prompt and political flashpoint. The likes of GLAAD and the band Tegan and Sara declared Tyler poisonous and asked the music industry to stop supporting him. Theresa May, back when she was home secretary of the U.K., took the extraordinary step of banning him from her country because his lyrics “encourage violence and intolerance of homosexuality.”

The War on the Freedom of Information Act

Michelle Cottle

A conservative group is resisting congressional efforts to kneecap FOIA.

The health-care clusterfudge continues. Senator John McCain has brain cancer. President Trump throws another public tantrum. Russia, Russia, Russia.

That about covers the Big Political Headlines of the week. Now for something really sexy: the creeping assault on the Freedom of Information Act.

Stop right there! No clicking over to that Tucker Carlson YouTube rant. This is another one of those ticky-tacky, below-the-radar issues that may sound like a nonprescription substitute for Ambien but is, practically speaking, super important—especially in the Age of Trump.

FOIA is what enables regular people to pester powerful federal agencies into handing over information about what they’ve been up to. FOIA’s website calls it “the law that keeps citizens in the know about their government.” Though a tad grandiose, that characterization is pretty much accurate. And never has such a tool been quite so vital as with the current White House, which has adopted a policy of unabashedly lying about pretty much everything.

Stiglitz: Here's How to Fix Inequality

Gillian B. White

In his new book, a Nobel laureate outlines how the huge disparity arose and the huge course correction needed to address it.

If there’s one thing Joseph Stiglitz wants to say about inequality, it’s that it has been a choice, not an unexpected, unfortunate economic outcome. That’s unnerving, but it also means that citizens and politicians have the opportunity to fix the problem before it gets worse.

In his new book, Rewriting the Rules of the American Economy: An Agenda for Growth and Shared Prosperity, Stiglitz, a Nobel-prize winning economist, professor at Columbia University, and the chief economist at the Roosevelt Institute, asks the question “Can the rules of America’s economy be rewritten to benefit everyone—not just the wealthy?” The answer, he insists, is yes.

CREATISTA / locrifa / Shutterstock / The Atlantic

How Friendships Change in Adulthood

Julie Beck

“We need to catch up soon!”

In the hierarchy of relationships, friendships are at the bottom. Romantic partners, parents, children—all these come first.

This is true in life, and in science, where relationship research tends to focus on couples and families. When Emily Langan, an associate professor of communication at Wheaton College goes to conferences for the International Association of Relationship Researchers, she says, “friendship is the smallest cluster there. Sometimes it’s a panel, if that.”

Friendships are unique relationships because unlike family relationships, we choose to enter into them. And unlike other voluntary bonds, like marriages and romantic relationships, they lack a formal structure. You wouldn’t go months without speaking to or seeing your significant other (hopefully), but you might go that long without contacting a friend.