There comes a time in every hyped-up business trend’s life cycle when the noise becomes so intense it’s comical. Cryptocurrency, bitcoin, and most important, the blockchain technology that underlies them, have reached that moment. Executives in just about any industry imaginable—music, advertising, medicine, pizza delivery—are now eager to discuss how they can capitalize on “the blockchain.” (Note to execs: There are many blockchains, not just “the one.

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As if there wasn’t enough angst in the world, what with the Washington soap opera, #MeToo, false nuclear alerts, and a general sense of apprehension, now we also have a growing sense of alarm about how smartphones and their applications are impacting children.

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Mark Zuckerberg promised to spend 2018 fixing Facebook. Last week, he addressed Facebook making you feel bad. Now he’s onto fake news. Late Friday, Facebook buried another major announcement at the end of the week: How to make sure that users see high-quality news on Facebook. Facebook’s solution? Let its users decide what to trust. On the difficult problem of fixing fake news, Zuckerberg took the path with the least responsibility for Facebook, but described it as the most objective.

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In May 2015, The New Yorker published a profile of the Silicon Valley investor Marc Andreessen. In it, writer Tad Friend joined Andreessen in his living room to watch an episode of Halt & Catch Fire, the AMC drama chronicling the rise of personal computing in the early 1980s. The scene provided an intimate window into the billionaire’s home life.

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Thomas M. Wagner has uploaded over 300 science fiction reviews to YouTube since 2013. He’s not a major star, but his content has attracted an audience of around 4,400 bookworms who subscribe to his channel. In return for their attention, Wagner likely receives less than $100 a month in advertising revenue, according to the analytics company SocialBlade. The vast majority of YouTube comprises niche channels like Wagner’s.

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In 2014, Joseph Poon and Thaddeus Dryja were bitcoin-obsessed engineers hanging out at pizza-fueled meetups in San Francisco. Their conversation often turned to the central problem of bitcoin: How to make it more useful? The bitcoin network’s design effectively limits it to handling three to seven transactions per second, compared with tens of thousands per second for Visa. Poon and Dryja recognized that for bitcoin to reach its full potential, it needed a major fix.

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News spread Monday of a remarkable breakthrough in artificial intelligence. Microsoft and Chinese retailer Alibaba independently announced that they had made software that matched or outperformed humans on a reading-comprehension test devised at Stanford. Microsoft called it a “major milestone.” Media coverage amplified the claims, with Newsweek estimating “millions of jobs at risk.” Those jobs seem safe for a while.

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Apple has faced mounting criticism in recent years for avoiding taxes in the US and Europe. Wednesday, it offered critics 38 billion replies. More precisely, Apple said it would pay an estimated $38 billion in tax to bring back to the US some of the cash it has stashed overseas over the years. Apple says the payment would be the largest tax payment of its type in history. But it’s also a pretty good deal for the company.

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The engineer at the heart of the upcoming Waymo vs Uber trial is facing dramatic new allegations of commercial wrongdoing, this time from a former nanny. Erika Wong, who says she cared for Anthony Levandowski’s two children from December 2016 to June 2017, filed a lawsuit in California this month accusing him of breaking a long list of employment laws.

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In the fall of 2016, Keegan Hankes, an analyst at the Southern Poverty Law Center, paid a visit to the neo-Nazi website the Daily Stormer. This was not unusual; part of Hankes’ job at the civil rights organization was to track white supremacists online, which meant reading their sites.

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