It explains how the documents at arm reach on the desk are faster to access than the things in the cabinets. It obscures the fact that stuff on the desk dissapears if the power supply glitches even just a little.
In fact we invented these batteries with electronics which sense if the electricity is about to go out so the computer has time to carry the documents from the desk to the cabinets before they dissapear. And we think this is normal and even necessary in pro settings. (I’m talking about uninterrupted power supplies of course.)