I think they mean valid as in ~useful or ~worthwhile or ~good, because otherwise, as far as I understand it, that would depend on the arguments. And if so, that

I think they mean valid as in ~useful or ~worthwhile or ~good, because otherwise, as far as I understand it, that would depend on the arguments. And if so, that’s up to the person. Would this be a useful physical example?: evaluating a car by the material of its nuts and bolts is not a full evaluation. You have evaluated a car by the material of its nuts and bolts. Therefore you have not fully evaluated the car. That seems valid doesn’t it? Otoh, only considering the “cool factor” of a car is not a full evaluation of the car… On another hand: given my priorities and information, I find it’s generally unimportant/more important/somewhat-important to consider/ignore the “cool factor” of a car in favour of focussing on the nuts and bolts. Last one isn’t valid I don’t think and it’s not trying to be, since it’s an inference of best estimate for the purpose of decision support. Right?