I'm looking through this thread and the concept behind the picture is 100x more fascinating to me than the actual question. Is the number your maximum capability?
I'd estimate I go through the majority (90℅?) of each day at like a 4 bordering on 5, but at times I'll move up to 2. It's a pretty seamless transition, I don't really have an explanation for why it only happens every so often. It's not like it's exclusively reserved for moments where it's more useful.
I don't expect people who can vividly imagine to be doing it all the time, kinda interpreted this as a cap.
Still 1-2 distinction seems odd to me. Is it cartoon to realistic?