I think "I assume X" is pretty clear and honest to the fact I'm making an assumption. I don't understand the need to aggressively emphase it. In a civilized di

I think "I assume X" is pretty clear and honest to the fact I'm making an assumption. I don't understand the need to aggressively emphase it. In a civilized discourse, if you disagree with my assumption because you know better, you should provide information as to why I'm wrong. And I'll be delighted to obtain this new knowledge. Otherwise, what's the point of your intervention?