Not imperfection of the heuristics, subjectivity of the goal designation; the PURPOSE for which the heuristic was designed.
That purpose is already assumed to be objective before we even get to the Heuristics (that's the other part of the argument).
Of course if you don't agree that the goal is objective, the result wouldn't be.
the heuristic IS objective, the purpose is not and can NEVER be - because it IS designated.
Objective goal + Objective Heuristic = Objective result.
You seem to be mixing them up and also accusing the Heuristic of subjectivity because you consider the goal subjective.
I'll address the Objectivity of the Hueristic first, but there's also another issue that is crucially important (and which is the main issue):
Most Objective Heuristic/Information (even given imperfection) = Most Moral Heuristic = Objectively Moral Choice of Heuristic.
Yet they still remain subjective, the criteria to be measured must be selected (because they are selected from an infinite number of possible objectives, therefore the selection itself is based on discretion)
No, the ultimate criteria is defined objectively- a matter of the collective interests of other conscious beings. That's a real thing- that comes from the Objective moral Goal. That is not an issue of the Heuristic.
How we measure those interests is the matter in question. And science can inform that measurement in an objective way (more and more precisely, and more accurately, as we better understand cognition).
Random House said:
sub·jec·tive
   [suhb-jek-tiv] Show IPA
adjective
1.
existing in the mind; belonging to the thinking subject rather than to the object of thought ( opposed to objective).
2.
pertaining to or characteristic of an individual; personal; individual: a subjective evaluation.
3.
placing excessive emphasis on one's own moods, attitudes, opinions, etc.; unduly egocentric.
[...]
The interests of a conscious being are objectively real with respect to that being- they exist as true things- they are even precisely measurable given the right technology. That we do not know how to measure them precisely does not make our attempts to do so subjective (in the sense of an
opinion) it makes them imprecise, and possibly inaccurate.
Subjective (in the sense that it is capable of a binary contamination) is an
opinion- like whether a painting is beautiful, or whether or not peanut butter is delicious.
At no time do scientific endeavors become true opinions- they are just attempts to measure fact that may go awry (such as by inaccurate or imprecise information).
One person thinks
string theory is on the right track- another person disagrees entirely. It is not opinion as to whether String theory (or something very much like it) is true or not- it is objective fact. One of those people are wrong, and one is right.
That there was no evidence to prove either way excuses the wrong party for being wrong (he or she couldn't have known better), and costs the right party any self-satisfaction for having been right (he or she was just a good guesser).
A
guess about a fact, is not the same as an
opinion.
A guess can be right or wrong. And opinion is neither.
Our uncertainty about the nature of cognition leads to GUESSES, but these guesses are
not opinions. It is a degree of inaccuracy, for which we can not be blamed, but NOT something that makes it subjective in that sense.
If we don't know which is more accurate- EQ, IQ- we have to guess to move forward. That's a guess with regards to accuracy- maybe a right guess wrong guess- but it's not an opinion.
It is not now, nor will it ever be, an opinion.
When the heuristic incorporates
guesses, it becomes imprecise or potentially inaccurate- but it does not become an opinion. It does not become Subjective (in the sense of all or nothing contamination).
If the heuristic incorporated an
opinion- like whether something was beautiful- without respect to those who held it to objectify it, THEN and ONLY THEN would it become subjective in the sense of an opinion.
This Heuristic doesn't incorporate any opinions; it incorporates guesses.
Maybe in common usage, people can
confuse opinions and guesses, and think they have the same meaning. Philosophically, however, they are very distinct- they do not in any respect have the same logical meaning.
With respect to the objectivity of science, it is a matter of eliminating biases (in that sense, objective means without biases)-- those kinds of biases are not opinions, but based on perception and information processing biases-- sampling biases, and any other. Most biases that are being controlled for in scientific experiments aren't even known by the experimenters (it has nothing to do with opinion), and have nothing to do with their expectations (which is why experimental control groups are used- to control for things we can't anticipate and don't even know about). A bias of that type introduces ERRORS, not opinions.
Flaws in that process aren't called "Subjective"
, they are accounted for in statistical analysis and margins of
error, and in the case of something systemic which biased the experiment, it's a matter of inaccuracy caused by poor methodology.
In trying to represent the weight of interests of a conscious being with something like IQ or EQ (which attempt to use standardized metrics), it is THAT kind of inaccuracy we have (using something we know to introduce some margin of error)- NOT an encroachment of opinion/subjectivity.
Anyway, and as I have said many times:
Currently, our understanding of cognition is insufficient to measure these values precisely- which means in a trivial example like those we were discussing, we estimate for sake of argument (and ease of use). I was not trying to insist that IQ was the way to do it (IQ is only vaguely correlated to the actual issue at hand).
That doesn't mean those estimations are reliable except for when the answers come out in the extremes of negative or positive.
And that doesn't make the process, applied properly, subjective- just inaccurate to the degree that IQ is inaccurate as a representation of what is really at issue.
If you find objection to the approximation of "IQ" for explanatory purposes, we can make the heuristic more accurate and less precise by introducing ranges:
When there is uncertainty in science, we apply a margin of error to every relevant number and operation.
The study of cognition is not so immature that we do not at least
know to a reasonable objective certainty that a normal human possesses more substantial interests than an amoeba.
Maybe Chimps are superior to us, in respect to the substantial quality of their interests- that seems unlikely, but it's within the bounds of our uncertainty.
Some things are not outside the bounds of that uncertainty, some things are.
In order to make the heuristic more accurate, all we have to do is apply that uncertainty to it in the best way we are able.
Some results will come out innately grey; without an answer beyond the bounds of uncertainty. Some will come out very clearly moral or immoral.
That's my point about grey areas; those numbers- and the means of measurement (e.g. IQ, EQ, brain mass, metabolic expenditure, whatever)- have to have error bars on them in order for the heuristic to show us where the answers are (currently) meaningful, and where they are not.
That does not mean that we can not get meaningful and reliable objective (in the sense of NOT opinion) measurements, in so far as science can yield data to make them by, taking into account that uncertainty as a margin of error.
The heuristic turning out "insufficient data to draw conclusion" is not a flaw, but a representation of our own uncertainty as to the precise workings of the world around us-- that does not affect the objectivity of the goal itself, or the objectivity of the morality of following the best heuristic we have.
As science advances, we will have to guess less and less, we'll be able to measure things more properly, and the error bars will shrink, allowing the heuristic to provide more meaningful answers in that grey area.
however the specific individuals still retain subjectivity because what they measure (desire to live, desire to avoid suffering, apathy towards torture of criminals, apathy towards torture of the intellectually disabled etc) ARE subjective;
Those are not subjective. It is an objective truth that Billy is apathetic towards torturing criminals.
Whether torturing criminals is fun or not is subjective (opinion).
Whether BILLY thinks torturing criminals is fun or not is objective (fact).
Measuring what Billy thinks in an objective way comes down to Scientific methodology (methodology that just happens to be poorly developed).
Any uncertainty as to his opinions have to be related into the equations themselves and carry on to the results. To not do so would be bad methodology- implying a degree of certainty higher than that which it actually is.