I don’t know if it’s reasonable to ask that of advice. This sort of advice is much like an opinion, and evidence isn’t appropriate for opinions. (‘Cheesecake tastes better than caviar’. ‘What evidence do you have of that?’)
You seek the evidence of the facts like “if a random person, or a person with properties Z, tastes this new improved cheesecake, what’s the probability they’ll enjoy it? How highly will people rank it on so and so scale?”. This can be estimated in many ways, with different levels of certainty. Advice is useless noise if you don’t expect it to work for you.
I don’t know if it’s reasonable to ask that of advice. This sort of advice is much like an opinion, and evidence isn’t appropriate for opinions. (‘Cheesecake tastes better than caviar’. ‘What evidence do you have of that?’)
You seek the evidence of the facts like “if a random person, or a person with properties Z, tastes this new improved cheesecake, what’s the probability they’ll enjoy it? How highly will people rank it on so and so scale?”. This can be estimated in many ways, with different levels of certainty. Advice is useless noise if you don’t expect it to work for you.