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Biometric Sentiment Ad-Yield.

Models the revenue increase for digital billboards that use pupillary dilation and heart-rate tracking to adjust pricing in real-time based on the viewer's emotional state.

## The Face is the New Cookie

When a billboard looks back at you, it sees more than a person. It sees a specific level of dopamine or cortisol. This tool models 'Sentiment Auctioning.'

### FAQ

**Q: Is it legal to track my heart rate via a billboard?**
A: In many public jurisdictions, 'facial observation' is legal. If the billboard can detect your pulse via skin micro-color changes (photoplethysmography), it can determine if you are hungry, angry, or excited. Advertisers pay 45% more to show a burger ad to a person whose biometrics indicate hunger. You are being auctioned to the highest bidder based on your internal biology, in real-time.