I read this with interest and my opinion it has a few flaws, like human nature, unpredictability spontaneity and circumstances, for starters.
But it shows how the manufacturers of smart/fitness devices are thinking.
cnbc.com/2020/01/19/persona...
I have a smart watch and I have scales that measure my body fat electronically but I'd hit the off switch if they started to tell me what to eat and when as there are so many permutations for eating well for us. It just shows how the tech giants have their eyes on the potential of a personalised nutrition diet plan...💲💲💲 👀
May be I'm being a cynic. 😀