Final answer:
The age difference between Othello and Desdemona is significant as it contributes to Othello's insecurities, which are exploited by Iago leading to the tragedy in the play.
Step-by-step explanation:
The age difference between Othello and Desdemona is a notable aspect in Shakespeare's play Othello. It is false that this fact is unimportant to Othello as the play progresses. Othello's insecurities about his age, as well as his race and outsider status, are manipulated by Iago to breed mistrust and jealousy towards Desdemona. Throughout the play, these insecurities are continuously highlighted, contributing to the tragic downfall of their relationship.