Andrei Pop isn’t your casual Quantified Selfer. He doesn’t only use gadgets like Fitbits (see disclosure) and Nike Fuelbands (s NKE) to track his daily steps and calories burned, he’s actually pulled apart devices to reconstruct his own sensors and runs custom analyses using Google Docs.
Just like early computer enthusiasts compared notes with kindred souls at Homebrew Computer Club meetings, Pop said he regularly shares his results with other data geeks at local Quantified Self meetups. The insights he’s gleaned are fairly modest: he switched from coffee to tea after realizing how profoundly caffeine affected him, and cut his sleep back to 6.5 hours from 8 hours after realizing that’s the optimal amount he needs. But his hobby has shown him the powerful way that feedback loops can change behavior. Now, with his startup Human API, he wants to help developers create more of those feedback loops around…