The answer is REALLY simple here. Say "I don't understand what this is doing" and then have add a comment. Just like there's a rule "you're never the smartest

The answer is REALLY simple here. Say "I don't understand what this is doing" and then have add a comment. Just like there's a rule "you're never the smartest person in a room, there's probably someone smarter than you" there's a rule "you're never the stupidest person in the room, there's probably someone stupider than you". Someone in the future will be confused too. Just push for a comment.