The biggest problem with all these QS apps & wearables is it gives me TONS of really beautiful, useless data.
There's no action steps:
- no "you sleep optimally when going to bed at X and waking up at Y"
- no "you need to walk 15,000 steps for the next two months to hit your weight loss goal.
QS is a start - but there needs to be some sort of data interpretation for this stuff to be useful.
One reason for this is that the human body is too complex (and the data too incomplete) for simplistic advice like "walk x steps per day to reach weight y".
You're also unlikely to discover a novel correlation that can be used to lose weight (and write a book and get rich)... But what you can do is use your data to determine which known solutions are working for you, and which are not (e.g. do I really sleep better when going to bed before midnight, all else being equal?).
I'm eager to see how exist.io handles all of this! (I run another service in this space, zenobase.com)