„It turns out that, in medicine, normal is a fictional average. Your normal is not my normal and vice versa. The average normal is not very useful to you specifically. But with long-term self-tracking, you‘d arrive at a very personal baseline – your normal – which becomes invaluable when you are not feeling well, or when you want to experiment.“

– Kevin Kelly in „The Inevitable – Understanding the 12 technological forces that will shape our future.“ Viking, New York

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