There used to be “a thing” called “over-exposure” that was thought to apply to some celebrities, particularly in relation to product endorsements. It made sense that if a particular person was seen to be endorsing too many products it would tend to put pressure on their perceived veracity, implying that their opinion could be bought, and perhaps bought cheaply.

Lately — okay for decades — digital advertising’s spread from supporting content to supporting every sort of amusement, game, software application and yes, keeping us in touch with friends, and their friends, and their friends, has so multiplied digital advertising that it, too, is over-exposed.