Deep within your subconscious memories is a series of you unloading A4 from your printer, thinking about where to best store it, finding 20 reams already there, stacking this one on top, and then promptly forgetting the location.
Closest I can find is his concept of "First Order Retrievability"
Maybe, instead of attributing the quote to someone who said it, they attributed the quote to someone who they'd think would've said it.