- You could factor in the cost for environment per each recommendation and have that drive down the score of a recommendation: I think the "fast-fashion" idiotic anti-environmental trends would die out fast than.
- You could factor in, based on some overarching theme of ethos, that each person needs to eat healthy and recommend the right healhty food at the right time; instead of recommending the next best McDonalds burger to an already obese person.
- Take into consideration, based on studies, what actual heatlhy behaviour looks like, and try to fit that to a person - with respect to their actual persona and state of health (which are obviously known already given that each bit of you is pretty much on the street already)
I could go on, but in truth, a personal recommender that would know me better than I even would, and would optimise towards happiness and greatness, instead of # shit sold like it currently is, would already be a tremendous improvement. Surely, this idea is also far from original, but I hope that we someday get to such a thing. Atleast a thing that stops recommending environmentally destructive behaviours like buying so much stuff I don't really need.