Whilst I agree that perfect objectivity is not attainable, I think it is quite reasonable to say that there are degrees of objectivity (and by implication, degrees of subjectivity.) For instance if you were judging a talent contest, you would not normally be allowed to adjudicate your child's performance; for similar reasons, professionals such as doctors and lawyers are generally expected not to treat or represent their immediate family. You do see examples of politicians and journalists and the like, who make errors of judgement because of subjective bias.
So, I think as a of pragmatic rule, objectivity is important, but its limits need to be acknowledged.
The Greek sceptics of the later academy made a great deal of such arguments. But then you're always faced with a version of the liar paradox - if all propositions are to be distrusted, then so too is the proposition 'all propositions are to be distrusted'! So scepticism does easily tend to become self-defeating. It has its uses but it too can't be considered to be all-powerful.Infinite_Zero wrote:If there is no absolute truth, then certainly there is no absolute (objective) knowledge as our definition of knowledge must contain truth in it to even be considered some kind of knowledge to begin with.