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• Future Perfect

Why the CDC changed its Covid-19 quarantine guidelines

The CDC now says people can quarantine for less than two weeks — but would prefer people stick to the full 14 days.

A new Georgia poll suggests that Republican lies about “voter fraud” are hurting the GOP

Trumpy calls to boycott the election could help throw Senate runoffs to the Democrats.

AI has cracked a problem that stumped biologists for 50 years. It’s a huge deal.

A breakthrough on the "protein folding problem" can help us understand disease and discover new drugs.

Rudy Giuliani’s bizarre legal strategy, in two clips

Michigan Republicans asked Giuliani to prove his voter fraud claims. He brought a discredited witness who accused them of vote tampering instead.

The UN now says medical weed is a less dangerous drug

But it’s still a long way from international legalization.

WarnerMedia’s CEO explains why he’s blowing up the movie business

You can see all of Warner Bros.’ movies on HBO Max next year — on the same day they come to theaters. Here’s a Q&A with Jason Kilar about the logic behind the move.

America’s failures have led to a new daily record in Covid-19 deaths

The number of daily Covid-19 deaths in the US is now about the same as the number of people who died on 9/11.

Mark Zuckerberg gave $75 million to a San Francisco hospital. The city wants to condemn him anyway.

A vote on Thursday is the latest flashpoint in the debate over the proper role for billionaire philanthropy.