Ask HN: About day dreaming

I forked this question from this comment at http://news.ycombinator.com/item?id=1811024.

"While thinking about this on a plane to England, my mind makes the natural leap from my motley collection of python functions to turning down acquisition offers from Amazon and being invited to talk at Davos"

It would be interesting to know if PG/Why_/RichHickey/Norvig kinds indulge in day dreaming? My understanding is that this is a natural thought process, so would occur to all.

OR

would it be the case that all the accomplished are so engrossed that they don't have brain cycle to process these kind of fantasies?

I shouldn't be doing direct questions, but in this context, cannot resist. So PG: Do you indulge in day dreaming?