In a corner of Alphabet’s campus, there is a team working on a piece of software that may be the key to self-driving cars. No journalist has ever seen it in action until now. They call it Carcraft, after the popular game World of Warcraft.

The software’s creator, a shaggy-haired, baby-faced young engineer named James Stout, is sitting next to me in the headphones-on quiet of the open-plan office. On the screen is a virtual representation of a roundabout. To human eyes, it is not much to look at: a simple line drawing rendered onto a road-textured background. We see a self-driving Chrysler Pacifica at medium resolution and a simple wireframe box indicating the presence of another vehicle.

One day last summer, around noon, I called Athena, a 13-year-old who lives in Houston, Texas. She answered her phone—she’s had an iPhone since she was 11—sounding as if she’d just woken up. We chatted about her favorite songs and TV shows, and I asked her what she likes to do with her friends. “We go to the mall,” she said. “Do your parents drop you off?,” I asked, recalling my own middle-school days, in the 1980s, when I’d enjoy a few parent-free hours shopping with my friends. “No—I go with my family,” she replied. “We’ll go with my mom and brothers and walk a little behind them. I just have to tell my mom where we’re going. I have to check in every hour or every 30 minutes.”

Those mall trips are infrequent—about once a month. More often, Athena and her friends spend time together on their phones, unchaperoned. Unlike the teens of my generation, who might have spent an evening tying up the family landline with gossip, they talk on Snapchat, the smartphone app that allows users to send pictures and videos that quickly disappear. They make sure to keep up their Snapstreaks, which show how many days in a row they have Snapchatted with each other. Sometimes they save screenshots of particularly ridiculous pictures of friends. “It’s good blackmail,” Athena said. (Because she’s a minor, I’m not using her real name.) She told me she’d spent most of the summer hanging out alone in her room with her phone. That’s just the way her generation is, she said. “We didn’t have a choice to know any life without iPads or iPhones. I think we like our phones more than we like actual people.”

Last night I was in circumstances where I could hear only a few excerpts from Donald Trump’s inflammatory speech in Phoenix. The parts I heard were remarkable enough.

They included Trump’s wink-wink implied promise to pardon ex-Sheriff Joe Arpaio, who was first turned out of office by the voters of Maricopa County and then found guilty by a federal judge of criminal contempt-of-court. There was also Trump’s threat to “close down our government” if the Congress won’t provide funding for his border wall—the same one Mexico was going to pay for. Plus his flatly deceitful rendering of what he had said about the neo-Nazi violence in Charlottesville, and why the press had criticized him for it. Plus his railing against Democratic obstructionism and the filibuster, when his biggest legislative failure, the repeal of Obamacare, was on a simple-majority vote.

Do you know someone who needs hours alone every day? Who loves quiet conversations about feelings or ideas, and can give a dynamite presentation to a big audience, but seems awkward in groups and maladroit at small talk? Who has to be dragged to parties and then needs the rest of the day to recuperate? Who growls or scowls or grunts or winces when accosted with pleasantries by people who are just trying to be nice?

I had written five books for Scott Moyers, following him as he moved from editing jobs at Scribner’s to Random House and then to Penguin Press. We worked well together, and in part thanks to his strong editing hand, my last three books had been bestsellers.

So what happened when I finished years of work and sent him the manuscript of my sixth book stunned me. In fact, I was in for a series of surprises.

They began about 18 months ago, after I emailed to him that manuscript, a dual appreciation of Winston Churchill and George Orwell. When I had begun work on it, in 2013, some old friends of mine thought the subject was a bit obscure. Why would anyone care how two long-dead Englishmen, a conservative politician and a socialist journalist who never met, had dealt with the polarized political turmoil of the 1930s and the world war that followed? By 2016, as people on both the American left and right increasingly seemed to favor opinion over fact, the book had become more timely.

TOCHIKUBO, Japan—The children had moved to the big city, never to return.

So their parents, both over 70, live out their days in this small town in the mountains, gazing at the rice paddies below, wondering what will become of the house they built, the garden they tended, the town they love.

“I don’t expect them to come back,” Kensaku Fueki, 73, told me, about his three daughters, all married and living in Tokyo. “It’s very tough to live on farming.”

For decades, young people have been fleeing this rural village, lured by the pull of Japan’s big cities like Tokyo and Osaka. Tochikubo’s school now has eight children, and more than half of the town’s 170 people are over the age of 50. “Who will come here now?” said Fueki, who grew up in this village and remembers a time when many of the houses weren’t abandoned, when more people farmed the land and children roamed the streets.

When free-speech advocates point out that the First Amendment protects even hate speech, as the attorney Ken White recently observed, they are often met with extreme hypotheticals. For example: “So, the day that Nazis march in the streets, armed, carrying the swastika flag, Sieg-Heiling, calling out abuse of Jews and blacks, some of their number assaulting and even killing people, you'll still defend their right to speak?"

In Charlottesville, he declared, something like that scenario came to pass: “Literal Nazis marched the streets of an American city, calling out Jews and blacks and gays, wielding everything from torches to clubs and shields to rifles, offering Nazi slogans and Nazi salutes. Some of their number attacked counter-protesters, and one of them murdered a counter-protester and attempted to murder many others. This is the ‘what if’ and ‘how far’ that critics of vigorous free speech policies pose to us as a society.”

After this week's earlier entry, Chinese Architecture, Old and New, I just had to run this short follow-up. Homeowners Luo Baogen and his wife refused to allow the government to demolish their home in Wenling, Zhejiang province, China, claiming the relocation compensation offered would not be enough to cover the cost of rebuilding. So, adjacent neighboring homes were dismantled, and, bizarrely, the road was built around the intact home, leaving it as an island in a river of new asphalt.

When did America become untethered from reality?

I first noticed our national lurch toward fantasy in 2004, after President George W. Bush’s political mastermind, Karl Rove, came up with the remarkable phrase reality-based community. People in “the reality-based community,” he told a reporter, “believe that solutions emerge from your judicious study of discernible reality … That’s not the way the world really works anymore.” A year later, The Colbert Report went on the air. In the first few minutes of the first episode, Stephen Colbert, playing his right-wing-populist commentator character, performed a feature called “The Word.” His first selection: truthiness. “Now, I’m sure some of the ‘word police,’ the ‘wordinistas’ over at Webster’s, are gonna say, ‘Hey, that’s not a word!’ Well, anybody who knows me knows that I’m no fan of dictionaries or reference books.