That’s the lynch pin. You don’t have to. You can be utterly incapable of actually following through on what you’ve deemed is a logical behaviour, yet still comment on what is objectively right or wrong. (this goes back to your original comment too)
There are millions of obese people failing to immediately start and follow through on diets and exercise regimes today. This is failing to satisfy their preferences—they have an interest in not dying early, which being obese reliably correlates with. It ostensibly looks like they don’t value health and longevity on the basis of their outward behaviour. This doesn’t make the objectivity of health science any less real. If you do want to avoid premature death and if you do value bodily nourishment, then their approach is wrong. You can absolutely fail to satisfy your own preferences.
Asking the further questions of, “why satisfy my own preferences?”, or “what act in a logically consistent fashion?”, just drift us into the realm of radical scepticism. This is an utterly unhelpful position to hold—you can go nowhere from there. “Why trust my sense data are sometimes veridical?” …you don’t have to, but you’d be mad not to.
“why satisfy my own preferences?”
That’s the lynch pin. You don’t have to. You can be utterly incapable of actually following through on what you’ve deemed is a logical behaviour, yet still comment on what is objectively right or wrong. (this goes back to your original comment too)
There are millions of obese people failing to immediately start and follow through on diets and exercise regimes today. This is failing to satisfy their preferences—they have an interest in not dying early, which being obese reliably correlates with. It ostensibly looks like they don’t value health and longevity on the basis of their outward behaviour. This doesn’t make the objectivity of health science any less real. If you do want to avoid premature death and if you do value bodily nourishment, then their approach is wrong. You can absolutely fail to satisfy your own preferences.
Asking the further questions of, “why satisfy my own preferences?”, or “what act in a logically consistent fashion?”, just drift us into the realm of radical scepticism. This is an utterly unhelpful position to hold—you can go nowhere from there. “Why trust my sense data are sometimes veridical?” …you don’t have to, but you’d be mad not to.