Richard Vogel / AP

Researchers at the University of Chicago taught AI to write realistic restaurant reviews using Yelp reviews as an example. The reviews aren't written perfectly, but it's tough to spot the difference between real and AI-generated reviews.

Why it matters: People take reviews seriously — the researchers cited studies that found a one-star increase on Yelp can boost restaurant revenue by 5 to 9%. AI-generated reviews, if negative or revealed to be fake, could be a blow to review-oriented websites like Yelp and Amazon, and the products and services that rely on them.

What to watch for: Perfection may not be that far off: researchers can use advanced software to create better neural networks, making results even more believable. This would make it easier for AI to mass produce fake reviews or maybe even fake news.

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Updated 6 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 8 p.m. ET: 19,497,292 — Total deaths: 723,854 — Total recoveries — 11,823,105Map.
  2. U.S.: Total confirmed cases as of 8 p.m. ET: 4,994,276 — Total deaths: 162,381 — Total recoveries: 1,643,118 — Total tests: 61,080,587Map.
  3. Politics: Trump signs 4 executive actions on coronavirus aid.
  4. Public health: Fauci says chances are "not great" that COVID-19 vaccine will be 98% effective — 1 in 3 Americans would decline COVID-19 vaccine.
  5. Science: Indoor air is the next coronavirus frontline.
  6. Schools: How back-to-school is playing out in the South as coronavirus rages on — Princeton, Johns Hopkins, Howard to hold fall classes online.

Trump signs 4 executive actions on coronavirus aid

President Trump speaking during a press conference on Aug. 8. Photo: Jim Watson/AFP via Getty Images

President Trump on Saturday signed four executive actions to provide relief from economic damage sustained during the coronavirus pandemic after talks between the White House and Democratic leadership collapsed Friday afternoon.

Why it matters: Because the Constitution gives Congress the power to appropriate federal spending, Trump has limited authority to act unilaterally — and risks a legal challenge if congressional Democrats believe he has overstepped.

7 hours ago - World

What's next for Lebanon after the Beirut explosion

Photo: Houssam Shbaro/Anadolu Agency via Getty Images

Beirut residents are still clearing rubble from streets that appear war-torn, days after a blast that shocked the country and horrified the world.

Why it matters: The explosion is likely to accelerate a painful cycle Lebanon was already living through — discontent, economic distress, and emigration.