After a long drought, the go-go days of hot technology IPOs appear to be back. The new age began last week with the long-awaited public offering of shares in ride-hailing service Lyft, which raised more than $2 billion for the company with a valuation climbing to over $26 billion before falling back to earth on Monday. To put that in perspective, Lyft’s valuation after the IPO rivaled those of Snapchat, Dropbox, and Spotify; it’s larger than all of this year’s IPOs combined.

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While millions of Americans were enjoying a warm spring weekend, Facebook employees were hard at work responding to an avalanche of news about their company.

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Virtual private networks (VPNs) can help protect your internet traffic from prying eyes. VPN services route your email, web browsing, and other internet activity through the service provider's servers, making it appear to outsiders that you're only accessing those servers. VPN services help users in China, for example, reach blocked sites by making it appear they’re accessing something else.

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In a move that’s months in the making, Facebook announced Wednesday that beginning next week, it will take down posts supporting both white nationalism and white separatism, including on Instagram. It’s an evolution for the social network, whose Community Standards previously only prohibited white supremacist content while allowing posts that advocated for ideologies like race segregation.

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For our eyes, reading is hardly a smooth ride. They stutter across the page, lingering over words that surprise or confuse, hopping over those that seem obvious in context (you can blame that for your typos), pupils widening when a word sparks a potent emotion. All this commotion is barely noticeable, occurring in milliseconds. But for psychologists who study how our minds process language, our unsteady eyes are a window into the black box of our brains.

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The US government says a Chinese gaming company's ownership of gay dating app Grindr poses a national security risk, according to a report from Reuters. Beijing Kunlun Tech acquired a 60 percent stake in Grindr in 2016 and bought the rest in 2018. But, according to Reuters, the Chinese firm didn't clear the acquisition with the agency known as the Committee on Foreign Investment in the United States (CFIUS), which evaluates the national security impacts of foreign investments in US companies.

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Tech news you can use, in two minutes or less: Facebook moves against white nationalist content After months of grappling with its stance, Facebook has finally decided to ban white nationalist content on both Facebook and Instagram. Starting next week, US users who attempt to search for or post this type of content will be redirected to a nonprofit that works to help people leave hate groups.

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In the late 1980s, Canadian master’s student Yoshua Bengio became captivated by an unfashionable idea. A handful of artificial intelligence researchers was trying to craft software that loosely mimicked how networks of neurons process data in the brain, despite scant evidence it would work. “I fell in love with the idea that we could both understand the principles of how the brain works and also construct AI,” says Bengio, now a professor at the University of Montreal.

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Emily Pickett, a doula in Louisville, Kentucky, is used to hearing hard truths from expecting mothers. Her job is to guide women through pregnancy, acting as confidante and supporter; understanding their deepest stressors---an abusive partner, a struggle with drugs---is important to ensuring healthy pregnancies.

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Apple’s event Monday ended up featuring one piece of hardware after all: a new credit card, which it plans to launch this summer in the United States. The aptly-named Apple Card, created in partnership with Mastercard and Goldman Sachs, will live within the existing Wallet app on iPhones and as a traditional physical card.

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