Originally posted by JS357
I get your point. My point is that often we want someone to accept something we say. It is a premise unless we present the reasoning that makes it a conclusion. That makes it a reasonable premise for further reasoning.
A premise? That depends upon what you are trying to enforce, or re-enforce, and the timing which comes with it. Invoking a rationalisation, as you see it as raitionale, may well not be rational to anon. ; especially if you haven't considered cultural differences, or perspectives.
I did open the OP with respect to reasonable assumptions based heavily upon experience. Assumptions include a presence of a deity to some, of course.