Rationality, intelligence, and even evidence are not sufficient to resolve all differences. Sometimes differences are a deep matter of values and preferences. Trivially, I may prefer chocolate and you prefer vanilla. There’s no rational basis for disagreement, nor for resolving such a dispute. We simply each like what we like.
Less trivially, some people take private property as a fundamental moral right. Some people treat private property as theft. And a lot of folks in the middle treat it as a means to an end. Folks in the middle can usefully dispute the facts and logic of whether particular incarnations of private property do or do not serve other ends and values, such as general happiness and well-being. However perfectly rational and intelligent people who have different fundamental values with respect to private property are not going to agree, even when they agree on all arguments and points of evidence.
There are many other examples where core values come into play. How and why people develop and have different core values than other people is an interesting question. However even if we can eliminate all partisan-shaded argumentation, we will not eliminate all disagreements.
Rationality, intelligence, and even evidence are not sufficient to resolve all differences. Sometimes differences are a deep matter of values and preferences. Trivially, I may prefer chocolate and you prefer vanilla. There’s no rational basis for disagreement, nor for resolving such a dispute. We simply each like what we like.
Less trivially, some people take private property as a fundamental moral right. Some people treat private property as theft. And a lot of folks in the middle treat it as a means to an end. Folks in the middle can usefully dispute the facts and logic of whether particular incarnations of private property do or do not serve other ends and values, such as general happiness and well-being. However perfectly rational and intelligent people who have different fundamental values with respect to private property are not going to agree, even when they agree on all arguments and points of evidence.
There are many other examples where core values come into play. How and why people develop and have different core values than other people is an interesting question. However even if we can eliminate all partisan-shaded argumentation, we will not eliminate all disagreements.