Completely off-topic: As a one-time civil engineer, mathematical dullard, and frequent New York visitor, who is losing his mind, I thought this was about compl

Completely off-topic: As a one-time civil engineer, mathematical dullard, and frequent New York visitor, who is losing his mind, I thought this was about completing a subway line. In my defense, the N train does go to Queens (though it's not called the N-Queens), and everybody knows completing a subway line is a really hard problem, especially if you're following the story of the new 2nd Ave line.