That's easy eyebrow, just point up how the Everlasting Gobstopper appeared exactly on schedule according to the third scheduled appearance, which is to say within the couple of years stipulated for its arrival. No one knew it at first because, wouldn't you know it? It came invisibly. Which is interesting, now that I mention it, because my wife has a similar ability, but I digress. It is intangibly known to be present because its everlasting effects are felt upon all those alive at the time of it arrival, whether they recognized its arrival or not...
[hears murmurs from off stage left]
Well, I never! I happen to think there are lots of people who would find that explanation plausible. [walks off stage right in a huff]