"Listen, why do we need this letter M in the word 'Yitzhak'?"
"But there is no M in 'Yitzhak'!"
"No, I mean what if we insert it there?"
"But why do we need to insert M in 'Yitzhak'?"
"But that's EXACTLY what I'm asking you: why do we need M
in the word 'Yitzhak'?"