These Bro Scientists In San Francisco Want To Sell You Mind-Hacking Pills

It’s 8 a.m. on a recent Wednesday in San Francisco, and Yan Zhu, a 24-year-old blue-haired software engineer, sits at a communal table in a Thai-Italian restaurant munching on a stick of butter. She’s too hungry to wait for food; she hasn’t eaten in 36 hours. “This is my first time fasting, and I was feeling faint, so I brought some butter from home,” Zhu says.

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