On the other hand, sings that have overly large letter that stretch from one end to the other escape our attention precisely because they become too obvious to the casual observer. This oversight serves as an example of how the intellect may normally pass over details which are too self-evident. The Captain did not understand this. He never once thought it possible that the minister would place the letter in plain sight of the whole word.
By doing this, he prevented most of the word from actually noticing it.