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.

August 2023

Google’s Messages app will now use RCS by default and encrypt group chats

August 8, 2023
Google announced today it’s making its Messages by Google app more secure with improvements to RCS, or Rich Communication Services — a protocol aimed at replacing SMS and is more on par with the advanced features found in Apple’s iMessage. The company says it will now make RCS the default for both new and existing […]

Kickstarter’s CEO eyes the future of crowdfunding at TechCrunch Disrupt 2023

August 8, 2023
It wasn’t the first, but for more than 10 years, Kickstarter has been synonymous with crowdfunding. We’re excited to announce that CEO Everette Taylor will join us on the Hardware Stage, September 21, at TechCrunch Disrupt 2023. In a session called “Crowdfunding the Future,” we’ll discuss Taylor’s vision for the company. Crowdfunding itself may be […]

Nvidia CEO: We bet the farm on AI and no one knew it

August 8, 2023
Nvidia founder and CEO Jensen Huang said today that the company had made an existential business decision in 2018 that few realized would redefine its future, and help redefine an evolving industry. It’s paid off enormously, of course, but Huang said this is only the beginning of an AI-powered near future — a future powered […]

Cruise inches into Waymo’s territory in the Phoenix area

August 8, 2023
Cruise, the self-driving subsidiary of General Motors, has expanded its robotaxi radius in the Phoenix area by 20x as it seeks to compete with Alphabet-owned Waymo in its home court. Cruise soft-launched its robotaxi service in Chandler, a city southeast of Phoenix, in December 2022. The expanded arena will now include Tempe and Scottsdale, according […]