To me this is an incredible milestone. Biometric feedback for health is a simple but effective way to extend lifespans and make people happier.
A couple things I predict are coming in the not too distant future:
- Continuous feedback and monitoring of blood nutrition and glucose levels.
- Continuous feedback of mood - A real life mood ring, if you will.
- Mood data being correlated with your real life activity, guiding you towards things that make you genuinely happy and away from "empty calories" (Like mindlessly scrolling).