This is called an Active Inner Population. I don't know that it's specific to type.
But many introverts, who aren't as quick on the verbal comeback, will ponder for hours what they "should have said" (or done). This may involve recreating the conversation in imagination using events that are more pleasing to the individual introvert.
5s and 9s are supposedly the "what if?" kind of people, I'm sure other types do it too though (4s?). Wondering what they should have said is a "what if?" excercise, no?
I have a tendency to imagine having entire conversations with people I know. For a long time I thought it was some strange phenomenon unique to me, but a few days ago, one of my other INFP friends admitted to something similar. Now I'm beginning to wonder if it's a common occurrence for INFPs (or perhaps other types) to do this. It does seem like a very INFP thing to do.
does anyone else do this, or have any insight on it?
I spend a lot of time doing this.
That girls are raped, that two boys knife a third,
Were axioms to him, who'd never heard
Of any world where promises were kept,
Or one could weep because another wept.