Sign up for our daily briefing

Make your busy days simpler with Axios AM/PM. Catch up on what's new and why it matters in just 5 minutes.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on the day's biggest business stories

Subscribe to Axios Closer for insights into the day’s business news and trends and why they matter

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sign up for Axios Pro Rata

Dive into the world of dealmakers across VC, PE and M&A with Axios Pro Rata. Delivered daily to your inbox by Dan Primack and Kia Kokalitcheva.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sports news worthy of your time

Binge on the stats and stories that drive the sports world with Axios Sports. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Tech news worthy of your time

Get our smart take on technology from the Valley and D.C. with Axios Login. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Get the inside stories

Get an insider's guide to the new White House with Axios Sneak Peek. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Denver news?

Get a daily digest of the most important stories affecting your hometown with Axios Denver

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Des Moines news?

Get a daily digest of the most important stories affecting your hometown with Axios Des Moines

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Twin Cities news?

Get a daily digest of the most important stories affecting your hometown with Axios Twin Cities

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Tampa Bay news?

Get a daily digest of the most important stories affecting your hometown with Axios Tampa Bay

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Charlotte news?

Get a daily digest of the most important stories affecting your hometown with Axios Charlotte

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Nashville news?

Get a daily digest of the most important stories affecting your hometown with the Axios Nashville newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Columbus news?

Get a daily digest of the most important stories affecting your hometown with the Axios Columbus newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Dallas news?

Get a daily digest of the most important stories affecting your hometown with the Axios Dallas newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Austin news?

Get a daily digest of the most important stories affecting your hometown with the Axios Austin newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Atlanta news?

Get a daily digest of the most important stories affecting your hometown with the Axios Atlanta newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Philadelphia news?

Get a daily digest of the most important stories affecting your hometown with the Axios Philadelphia newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Chicago news?

Get a daily digest of the most important stories affecting your hometown with the Axios Chicago newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sign up for Axios NW Arkansas

Stay up-to-date on the most important and interesting stories affecting NW Arkansas, authored by local reporters

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top DC news?

Get a daily digest of the most important stories affecting your hometown with the Axios DC newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Illustration: Aïda Amer/Axios

AI systems have an endless appetite for data. For an autonomous car's camera to identify pedestrians every time — not just nearly every time — its software needs to have studied countless examples of people standing, walking and running near roads.

Yes, but: Gathering and labeling those images is expensive and time consuming, and in some cases impossible. (Imagine staging a huge car crash.) So companies are teaching AI systems with fake photos and videos, sometimes also generated by AI, that stand in for the real thing.

The big picture: A few weeks ago, I wrote about the synthetic realities that surround us. Here, the machines that we now rely on — or may soon — are also learning inside their own simulated worlds.

How it works: Software that has been fed tons of human-labeled photos and videos can deduce the shapes, colors and movements that correspond, say, to a pedestrian.

  • But there's an ever-present danger that the car will come across a person in a setting unlike any it's seen before and, disastrously, fail to recognize them.
  • That's where synthetic data can fill the gap. Computers can generate millions of scenes that an actual car might not experience, even after a million driving hours.

What's happening: Startups like Landing.ai, AI.Reverie, CVEDIA and ANYVERSE can create super-realistic scenes and objects for AI systems to learn from.

  • Nvidia and others make synthetic worlds for digital versions of robots to play in, where they can test changes or learn new tricks to help them navigate the real world.
  • And autonomous vehicle makers like Waymo build their own simulations to train or test their driving software.

Synthetic data is useful for any AI system that interacts with the world — not just cars.

  • In health care, made-up data can substitute for sensitive information about patients, mirroring characteristics of the population without revealing private details.
  • In manufacturing, "if you're doing visual inspection on smartphones, you don't have a million pictures of scratched smartphones," says Andrew Ng, founder of Landing.ai and former AI head of Google and Baidu. "If you can get something to work with just 100 or 10 images, it breaks open a lot of new applications."
  • In robotics, it's helpful to imitate hard-to-find conditions. "It's very expensive to go out and vary the lighting in the real world, and you can't vary the lighting in an outdoor scene," says Mike Skolones, director of simulation technology at Nvidia. But you can in a simulator.

"We're still in the early days," says Evan Nisselson of LDV Capital, a venture firm that invests in visual technology.

  • But, he says, synthetic data keeps getting closer to reality.
  • Generative adversarial networks — the same AI technology that drives most deepfakes — have helped vault synthetic data to new heights of realism.

Go deeper

Axios Visuals Deep Dive: Pandemic eating

Illustration: Sarah Grillo/Axios

A food revolution began pre-pandemic and COVID has only accelerated that. See how America's food industry is transforming, from farm to your table.

Abrams’ campaign manager rules out 2024 run if she wins governor's race

Photo: Jessica McGowan/Getty Images

In her first major interview since the official announcement, Stacey Abrams' campaign manager Lauren Groh-Wargo quashed speculation that the Georgia Democrat would interrupt a theoretical gubernatorial term to run for president in 2024.

Why it matters: Abrams' name has come up repeatedly as a top 2024 Democratic contender given President Joe Biden's age and Vice President Kamala Harris's low favorability rating.

Dan Primack, author of Pro Rata
Updated 2 hours ago - Politics & Policy

Trump social media group raises $1 billion from undisclosed investors

Illustration: Sarah Grillo/Axios

Donald Trump's social media startup on Saturday announced that it secured $1 billion in new investment as part of its ongoing efforts to become publicly traded via a blank check company.

Between the lines: None of the investors were identified, which is highly unusual for this sort of transaction.