There are those on the Internet who espouse their own one true way. Who believe they are correct and brook no conversation about it. Most of those people are fools and as such can be discounted.
Once in a while you find someone who is not a fool. Someone intelligent. Someone who many consider to be a leading resource in their field. I don't intend to name names, but for the second time I find myself disappointed by a particular one of those individuals. Someone intelligent who is closed to other people's thoughts, and closed to evaluating their own opinion in the light of discourse, is in my opinion worse than the fool who doesn't know better.
I will not engage this person a third time. I've worked with their like before and know it is pointless.
I leave you with this snippet, a childish resolution to very short conversation. I quote..
'No it's not. End of conversation.'