Every time someone makes the Big Plan, it has to be a NEW action - why? - because it can be done only once. It usually has a lot of trial and error preceeding it. And there is the wonderful aftermath of a non-mind altered state of living until death. But in regards to the BP being an action. It takes less than a minute, and only an MRI scan could identify any real changes taking place other than the person's own self knowledge.
I wonder what it would be like to make a Big Plan while getting an MRI and then watch the short scan movie to see what it looked like?