Any argument will have at least two clashing sets of beliefs or opinions involved, each trying to prove that they are indeed the one that is true. It is important, if one tries to resolve an argument, to hear out both sides, regardless of how ridiculous or misinformed one opinion may be, because if you dismiss an opinion out of hand, without hearing it, that opinion will grow stronger, boosting the argument forward into next rounds, until it does become resolved. Some arguments, like certain theological or philosophical ones, may never be resolved, while others, like the supposed “controversy” over fluoride, will almost certainly, if the arguing halves ever take the time to listen to each other and resolve their problems.