Thanks for the replies so far.
I only came across Provisionality as a named concept a few years ago through a philosophy group that I spent some time with.
It was crystal clear that I HADN'T used provisionality prior to this.
Provisionality could be described as the language of (real) Diplomacy.
I take an eternity sending business emails.
After the 'first draft', I usually have to add a 'greeting' to the start of the message, then add in the necessary (as I see it) provisionality words (to a first draft email that is completely devoid of any provisionality
) , before figuring out which two-word phrase to put on the end of the email to say goodbye.
That's what I like about emails, I get a second and a third shot at good communication, unlike when I am face to face with someone.
Provisionality is very important for me when I am introducing a new idea to clients.
It isn't always easy 
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Now then, tell me. What did Miggs say to you? Multiple Miggs in the next cell. He hissed at you. What did he say?