congnition to motor skills

Have you ever observed, that when giving a presentation with a laser pointer you tend to keep it turned on while point out things. The reason why most of us do this, instead of turning off while not showing anything in particular has to do with cognition and the use of this info for future motor tasks such as moving it to a different location or point of interest.
OK, we always need to know where we are to move the pointer in a controlled manner to the next location and the effort increases everytime you turn of the laser pointer. Because, before you move it to the particular location we have to find its current position which requires some searching in space. Controlled motor skills need a starting point. This is true with every task that needs congnition to perform motor skills.
My two cents!

PS- attended a seminar and the speaker was swaying the pointer all over and it was a bit hard to look at the things on the slides...