Well no, that makes them unimportant up until the point where there are people with similar viewpoints that disagrees with you on that point. In both of the cases in question, that is part of the situation. In the case of transubstantiation for example there were other branches of Catholicism or Christianity that actively argued against it. In the case of MWI, there are people that argue that interpretations don’t matter and I’ve encountered at least a few self-identified skeptics who consider MWI to be “unscientific”. Ideas don’t exist in vacuums; it would be the same mistake as if a Christian missionary assumed that anyone they are talking to has no prior exposure to Christianity at all.
Well no, that makes them unimportant up until the point where there are people with similar viewpoints that disagrees with you on that point. In both of the cases in question, that is part of the situation. In the case of transubstantiation for example there were other branches of Catholicism or Christianity that actively argued against it. In the case of MWI, there are people that argue that interpretations don’t matter and I’ve encountered at least a few self-identified skeptics who consider MWI to be “unscientific”. Ideas don’t exist in vacuums; it would be the same mistake as if a Christian missionary assumed that anyone they are talking to has no prior exposure to Christianity at all.