Mr. Curnutt says an answer of sorts can be found in aletter Scott wrote to Zelda in 1930, in which he argued that they were both to blame for their unhappiness and creative troubles.
In addition to showcasing your experience and skills, your cover letter can answer any questions about an employment gap that a hiring manager might have.
An information theorist would answer thus: if each letter is equally likely to occur, the uncertainty is complete and a searcher does not know which of the letters to expect.