forum for week of 28 November: pragmatism

"all truths are merely convenient fictions" Seems like it could be some what of a metaphysical statement. Where one could ask, where does truth exist? A: In a fictional world that we made up. (But then let me ask, is that true or false?) The claim itself leads us to either agree with it and say "ya thats true" or not and say, "no, thats not true." (T/F)? The absurd thing I see is that if someone were to agree with this statement, they are claiming their own position to be fictional and not real, because what they hold as truth, thus becomes something fictional. Why then, should we consider this statement to be anything more than what it claims itself to be, nameley fiction, thus not a fact about reality. Are there different perspectives? sure. Do people have different preferences? ABSOLUTELY. But to then turn around and assert "all truths are merely convenient fictions" seems to undermine itself by the claim it makes.