That doesn't sound very good in real life scenarios either. I can provide feedback without necessarily knowing how to fix it. For example, if someone I work with consistently have a hard time communicating their ideas, I can and should provide that feedback, even without knowing how they can fix it. At the very least if they realize the issue, they can attempt to go fix it themselves. Providing feedback in general is a gift.

> I can provide feedback without necessarily knowing how to fix it

But at least you provide guidance on how and where to learn the solution as well, yes? I don't imagine anyone going around telling people what they should do but not being able or willing to guide them to where they can find out how to do something. Also, I don't see providing advice that is both unsolicited and uninformed as being a gift. That's the sort of thing that cause most people to react poorly and perhaps say, "mind your own business".

Depends on the relationship I think and how the feedback is delivered as well as the topic. If I just give you unsolicited feedback about a topic that I have nothing to do with, then yea that can be weird. But presumably most feedback would be something where both people are involved to some degree. e.g. if you're chronically late to meetings that I attend, then me telling you that I would think is a good thing.

I get the point you are making and the "hunger" example is obviously a painful one. But I actually think feedback should be shared freely.

EG: if I have bad communication skills, yes ideally someone coaches me. But at least, random feedback of "wow that meeting went badly" - hearing that from many people over and over - may make me aware of the area and look into it myself.

Like, if I am starting to get fat, I want people to tell me when they see it, even if they don't have a diet and training regiment set up for me.

You might want feedback that tells you something new. But if you're steadily gaining weight and several people have told you, I bet you're less interested in hearing it from another five people every day. Especially if you happen to know that the weight gain is due to e.g. a new medication you're on because you've made a calculated decision that the benefits are worth the unavoidable weight gain, or that you have been eating badly because you're rushed and emotional while caring for a sick parent.

> if I am starting to get fat, I want people to tell me

But would you want random people to tell you, unsolicited, "you're fat, you need to lose weight".

Also, I'm obligated to note that the energy balance model of weight gain and loss has come under close scrutiny in recent research, and it is never as simple as eat less, exercise more. https://www.nature.com/articles/ejcn2011132

> it is never as simple as eat less, exercise more

It is probably not an all encompassing model, however it's still one of the best approximations for what the average layperson should do to lose weight.

With dieting and exercise, i went from a weight of 86 kg to 74 kg over a period of about 3 months (weighed myself daily, kept track of what i ate). Since then, with just dieting, i've gone from 74 to 70 kg in about 2 months.

Is it hard to get nutrition right in such circumstances? Sure. Are there more factors that should probably be taken into account? Of course. Can improperly done exercise cause damage to the body? Yes, that's why people repeat that you need good form so often.

However exercise most definitely works to some degree, even though i had to make myself to do a bit of it every day. I went from being able to do about 30 incline pushups to 150. From 30 situps to 150 as well. From being able to do 10 pullups, all the way to around 40, of course, all of the exercises divided into sets of repetitions with some rest inbetween. The numbers and targets could probably be fine tuned, but it was enough for me.