Spock: “I solved for the Y in my computation … but the variable so devastating: I’m the ex / X”.
Thanks. Now I get it. IIRC the subtitles had “solved for the why” and then the X didn’t make any sense. That is indeed clever.
My favourite Spock bit came at the end during the grande finale. Everyone was singing “we know our purpose, to protect the mission – our prime directive”, and Spock just goes “not exactly”. 😄