Axios

Samsung will enter the race for finger real estate later this year with its Galaxy Ring, unveiled Monday at Mobile World Congress in Barcelona.

Why it matters: The smart ring — a category popularized in recent years by the Oura Ring — marks Big Tech's latest push into health.

Supreme Court justices seemed skeptical of arguments from Florida and Texas defending social media content laws Monday, but also appeared to leave the door open to potential internet regulation in the future.

The big picture: SCOTUS is weighing how much freedom tech platforms should have over what people post, balancing First Amendment rights with principles of free speech, and whether platforms should be considered "town squares."

Microsoft launched its AI principles Monday, signaling years of major investments to come and a determination to spread its AI bets.

Why it matters: Microsoft's new principles codify how the company will pursue a "broad array of AI partnerships" beyond its $13 billion investment in OpenAI, the maker of ChatGPT.

Baseimmune, a British startup that uses AI to develop vaccines for future pathogen mutations, raised £9 million in venture capital funding.

Why it matters: Lots of the AI chatter right now is "what comes after chatbots," and the most likely (and consequential) answers are in biotech.

One new lawsuit and one new essay signal intensifying battles over energy demand from artificial intelligence and crypto-currency mining.

Why it matters: Both technologies demand electricity-thirsty computing at a time when the world is already failing to steeply cut emissions.

Rivian and Lucid are both getting punished in the market.

Why it matters: It's tough out there for pure-play electric vehicle companies, even buzzy ones with well-received models, as they churn through cash.

This photo shows Kara Swisher in 1997 in Bluemont, Virginia, which used to be called Snickersville, out in the exurbs of Loudoun County. "I rented a place as it was easier to get to AOL, which was past Dulles," she told Axios.

Why it matters: "Burn Book," out Tuesday, recounts Swisher's digital odyssey from those early days through her growing fame — The Washington Post, The Wall Street Journal, All Things D, The New York Times, New York magazine, Code Conference and now celebrity podcaster.

AI's key brain trusts are already looking beyond today's popular chatbots to a world in which AI agents act on your behalf.

Why it matters: As AI races from just saying things to doing things for us, its potential benefits and harms will multiply fast.

It pays to be nice to your AI: Large language models (LLMs) tend to give better answers when prompted respectfully and failure to do that can "significantly affect LLM performance," per a new cross-cultural research paper.

Why it matters: Your prompt may affect the answer you get today — and also how well an AI model can answer for everyone else tomorrow.