This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology.

Two hundred thirty meters into one of the deepest underwater caves on Earth, Richard “Harry” Harris knew that not far ahead of him was a 15-meter drop leading to a place no human being had seen before. 

Getting there had taken two helicopters, three weeks of test dives, two tons of equipment, and hard work to overcome an unexpected number of technical problems. But in the moment, Harris was hypnotized by what was before him: the vast, black, gaping unknown. 

Staring into it, he felt the familiar pull—maybe he could go just a little farther. Instead, he and his diving partner, Craig Challen, decided to turn back. They weren’t there to exceed 245 meters—a depth they’d reached three years earlier. Nor were they there to set a depth record—that would mean going past 308 meters. 

They were there to test what they saw as a possible key to unlocking depths beyond even 310 meters: breathing hydrogen. Read the full story. 

—Samantha Schuyler

This story is from the next print issue of MIT Technology Review, all about exploring hidden worlds. Want to get your hands on a copy when it publishes next Wednesday? Subscribe now.

Virtual power plants (VPPs) are an idea whose time has arrived. They’re basically a layer on top of resources like electric vehicle chargers, solar panels, and battery packs, which allow you to coordinate energy consumption and supply. This lets utility companies handle times of higher energy demand by adjusting the end use of electricity, for example reducing the efficiency of an EV charger so it takes longer to finish and thus puts less burden on the grid.

In China, which is adopting electric vehicles faster than any other country, VPPs could be transformational. The country has just started testing programs which incentivize EV owners to charge their vehicles late at night, when there’s less demand on the grid. 

It’s also piloting bidirectional charging stations, which would let EV owners not only use electricity, but even sell it back into the grid at times of peak demand, earning them a little extra cash. Read the full story.

—Zeyi Yang

This story is from China Report, our weekly newsletter giving you behind-the-scenes insights into China and its tech scene. Sign up to receive it in your inbox every Tuesday.

The must-reads

I’ve combed the internet to find you today’s most fun/important/scary/fascinating stories about technology.

1 Alabama’s Supreme Court ruled that frozen embryos are ‘children’
It’s a worrying development, especially for people seeking infertility treatments. (CNN)
+ The first IVF babies conceived by a robot have been born. (MIT Technology Review)

2 Inside AI startup Anthrophic’s funding spree 
Investors cannot hand money over to promising AI companies quickly enough right now, it seems. (NYT $)
+ OpenAI is now valued at a staggering $86 billion. (Bloomberg $)
+ Why the New York Times could win against OpenAI. (Ars Technica)

3 The EU is setting up rules for sucking CO2 out of the sky
It’s creating a first-of-its-kind certification framework for carbon removal technologies. (The Verge)
+ How carbon removal technology is like a time machine. (MIT Technology Review)

4 Researchers are imbibing AI with human-like qualities
No one is immune from anthropomorphism, it seems. (New Scientist $)
+ If you’ve posted on Reddit, your words are probably being used to train AI. (Ars Technica)

5 What mind-reading devices can teach us
They’re restoring functions like speech and movement. But they’re also shining a light on how the brain works. (Nature)
+ Elon Musk claims the first Neuralink patient can now control a computer mouse with their thoughts. (CNBC)

6 Fake funeral livestream scams are proliferating on Facebook
Beyond grim, and Meta’s doing almost nothing to prevent it. (404 Media)

7 A spacecraft is about to try to snag some space junk
If it works, it’ll be an important development for the effort to clear Earth’s orbit of debris. (Ars Technica) 

8 People are breeding pythons to have ‘emoji’ patterns 
But, as always amid a gold rush, some of them are doing some deeply unethical things in the process. (New Yorker $)

9 How scientists predicted Iceland’s vast volcanic eruption
And saved a lot of lives in the process. (Quanta)
+ How machine learning might unlock earthquake prediction. (MIT Technology Review)

10 Older people are among VR’s most enthusiastic adopters
And studies suggest spending time in virtual reality can produce positive effects, too. (AP)
+ Virtual reality can be used as a painkiller. (MIT Technology Review)

Quote of the day

“People say AI is overhyped, but I think it’s not hyped enough.”

—Puneet Chandok, who leads Microsoft India and South Asia, says we should get even more excited about AI, the Economic Times reports.

The big story

The open-source AI boom is built on Big Tech’s handouts. How long will it last?

STEPHANIE ARNETT/MITTR | ENVATO

May 2023

Last year a leaked memo written by a senior engineer at Google said out loud what many in Silicon Valley must have been whispering: an open-source free-for-all is threatening Big Tech’s grip on AI.

New open-source large language models—alternatives to Google’s Bard or OpenAI’s ChatGPT that researchers and developers can study, build on, and modify—are dropping like candy from a piñata. These are smaller, cheaper versions of the best-in-class AI models created by the big firms that (almost) match them in performance—and they’re shared for free.

In many ways, that’s a good thing. AI won’t thrive if just a few mega-rich companies get to gatekeep this technology or decide how it is used. But this open-source boom is precarious, and if Big Tech decides to shut up shop, a boomtown could become a backwater. Read the full story.

—Will Douglas Heaven

We can still have nice things

+ Paul McCartney has been reunited with a beloved bass guitar that was stolen 51 years ago. 
+ How to have a better relationship with money.
+ Obsessed with Nimbus and his marvelous piano skills. 
+ Cracking up at this game where you have to guess if a name refers to antidepressants or a character from Tolkien.