I'm probably off a few years but I'm thinking that first made its rounds maybe 10 years ago and it keeps getting rediscovered every year or so. It has a parallel to the old "cover your watch (smartphone screen) with your hand, now describe it." It just shows that we aren't very good at all in capturing or remembering the details because we focus on just one element of the picture.sorry if this has been posted elsewhere/already; a friend shared it on FB.