On this week’s Galaxy Brain episode, Charlie Warzel is joined by New York Times technology reporter Tiffany Hsu to discuss the rise of AI influencers—synthetic avatars, often indistinguishable from real people, that are flooding social-media feeds to sell supplements and promote brands. Hsu unpacks her reporting on the combination of forces converging around it, including the wellness industry, a historically fertile ground for scammers.

The pair discuss how the volume of synthetic content online is producing a new kind of epistemic exhaustion: a fatigue so deep that many people have simply stopped caring whether what they're seeing is real. So is authenticity already beside the point? And is an audience’s emotional response—rather than the truth behind the image—the only currency that matters?

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