Onstage, Sam Altman and co-founder Alex Blania announced that the cryptocurrency Worldcoin is coming to the US for the first time, along with a bevy of orbs. The idea is straight out of science fiction. It may be too far-fetched to work, but given Altman’s involvement, it’s something worth paying attention to.

Altman's World venture wants to convince people to scan their eyeballs to prove they're human amidst a proliferation of AIs and bots.

At a buzzy event in San Francisco, World announced a series of Apple-like stores, a partnership with dating giant Match Group, and a new mini gadget to scan your eyeballs.