The title of the episode is referring to a character in William Shakespeare's play "Othello", which has several film adaptations, the first being Othello (1951). The two main characters in the play are General Othello and Ensign Iago. At first Othello and Iago are friends: they are both soldiers who have fought along side each other for many years. Othello is Iago's commanding officer, and Iago hopes to get a promotion and become Othello's lieutenant and second in command. However, Othello believes Iago's talents would be better served by his remaining a soldier since Iago is a skilled warrior. Iago becomes jealous and resents being passed over for promotion by his friend. He devises a scheme to make Othello believe that his wife is having an affair with the man Othello picked for the promotion Iago wanted, hoping that Othello would not trust the man and pick Iago to succeed him. But Iago's plan backfires when it causes Othello to murder his wife in a fit of jealous rage; Othello later regrets his actions and commits suicide and word of Iago's plot gets out and he becomes a disgraced outcast.
The Dow Jones Industrial Average dropping by 10,000 points (which would make the market value drop by 31%) would be a major unmitigated disaster, almost as bad as the 1929 stock market crash that caused the Great Depression. The value of currency would plummet and it very likely would lead to a nation wide panic and a run on the banks. By comparison the largest real-life single-day point loss for the Dow was on March 16, 2020 when the market dropped 2,997 points due to market concern over COVID-19 which caused the 2020 stock market crash.