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.
When Elon Musk announced that his AI startup, xAI, had acquired his social media company, X (formerly known as Twitter), in an all-stock deal, it raised some eyebrows. But in many ways, the deal made sense. xAI’s chatbot, Grok, was already deeply integrated with X, X was floundering financially, and Musk needed a way to […]
Thirteen years ago, Forerunner Ventures began helping to usher in a new era of consumer startups, including Warby Parker, Bonobos, and Glossier. None has gone through a traditional IPO process. Warby Parker was taken public through a special purpose acquisition vehicle. Bonobos was acquired by Walmart. Glossier is still privately held, along with many other […]
Earlier this week, Meta landed in hot water for using an experimental, unreleased version of its Llama 4 Maverick model to achieve a high score on a crowdsourced benchmark, LM Arena. The incident prompted the maintainers of LM Arena to apologize, change their policies, and score the unmodified, vanilla Maverick. Turns out, it’s not very […]
Banking executive and former presidential advisor Dina Powell McCormick and Stripe co-founder and CEO Patrick Collison are joining the board of Meta, according to a report from Axios. Powell McCormick spent 16 years in several leadership roles at Goldman Sachs. She also served as Deputy National Security Advisor to President Donald J. Trump during his […]
While your values guide your business, they also can (and should) guide your investments. Intentional investing is a powerful way to make a difference. Here’s my experience, along with tips to get started in areas that matter most to you.