As with all debates, some people have their mind made up no matter what, which means it really isn't a debate but an argument.
How true and that is what I was thinking while I was reading all the info in this water debate. I sometimes have to remind myself that we are all just students and very few people, if any, can really consider themselves masters in these fields. When you consider yourself as a know it all about something, it seems to inhibit the learning curve. Some may also find humility if they learn a new paradigm.