June 18, 2025

Puzzle Corner

Ready for a fresh set of puzzles? Click here for the July/August 2025 Puzzle Corner, brought to you by guest editor Ed Faulkner ’03. Send problems, solutions (by August 1), and comments to puzzlecorner@technologyreview.com. Editor emeritus Allan Gottlieb ’67 launched Puzzle Corner in 1966. Find back issues through 2022 at cs.nyu.edu/~gottlieb/tr and more recent back issues at technologyreview.com/puzzle-corner.

Japan’s Geniee acquires AdPushup-operator Zelto for $70 million

March 3, 2023

Japanese marketing tech firm Geniee, part of the SoftBank Group, has paid about $70 million in cash to acquire the revenue optimization platform Zelto (formerly known as AdPushup), a person familiar with the matter said, delivering 40 times return to a number of angel investors in the startup that began its journey in India. The […]

Japan’s Geniee acquires AdPushup-operator Zelto for $70 million by Manish Singh originally published on TechCrunch

The idea of using a “three-parent baby” technique for infertility just got a boost

March 3, 2023
This article is from The Checkup, MIT Technology Review’s weekly biotech newsletter. To receive it in your inbox every Thursday, sign up here. This week, I’ve been working on a big story about a controversial treatment that creates babies with three genetic parents. The “three-parent baby” technique was thought to help parents avoid passing diseases…

A technique called Cell Painting could speed drug discovery

March 3, 2023
One of the earliest stages in the process of identifying a potential new drug is to expose cells to the compound in a lab dish and scour microscope images to see the effects. Biologists who do this work tend to focus on a few select features that could indicate the drug is working—a cluster of…

The inside story of how ChatGPT was built from the people who made it

March 3, 2023
When OpenAI launched ChatGPT, with zero fanfare, in late November 2022, the San Francisco–based artificial-intelligence company had few expectations. Certainly, nobody inside OpenAI was prepared for a viral mega-hit. The firm has been scrambling to catch up—and capitalize on its success—ever since. It was viewed in-house as a “research preview,” says Sandhini Agarwal, who works…

Twitter Blue expands to more than 20 countries

March 3, 2023

Twitter’s paid plan Twitter Blue is now available to more than 20 new countries in Europe. These countries include Netherlands, Poland, Ireland, Belgium, Sweden, Romania, Czech Republic, Finland, Denmark, Greece, Austria, Hungary, Bulgaria, Lithuania, Slovakia, Latvia, Slovenia, Estonia, Croatia, Luxembourg, Malta, and Cyprus. This expansion makes the social network’s subscription service available in more than […]

Twitter Blue expands to more than 20 countries by Ivan Mehta originally published on TechCrunch