A spirit of experimentation is afoot. Science has always given us great stories about people who experimented upon themselves. Whether we’re entertained by Santorio Santorio weighing his own poo, or by Albert Hofmann testing out LSD on himself, we could too easily come away with the idea that self-experimentation is dangerous, extreme, and just a touch silly. In the last few years, numerous popular self improvement writers like James Clear, Tim Ferriss, and Mark Sisson have been near the front of a movement. Thousands upon thousands of ordinary people geeks are running their own lives like science experiments in a common mission to make their lives better. Nowadays this activity…