“There’s a whole nexus of interventions, many of which come with packages, products and price tags, that promise some version of leapfrogging the human condition,” says Jamie Wheal, co-author of Stealing Fire: How Silicon Valley, the Navy SEALs, and Maverick Scientists Are Revolutionizing the Way We Live and Work. Wheal places ketamine alongside infrared saunas, ice baths and supplements in the life-hack space that influential “biohacker bros” such as Tim Ferriss and Dave Asprey have hyped.