You must be here for me, said a woman sitting at a small desk in the lobby of 101 Greenwich. Whether we didnt look like office workers, or there are no office workers who head into 101 Greenwich on a weekday afternoon, was left unexplained. We were shown to a dedicated elevator that whisked us to the nineteenth floor where artist Christopher Wool has rented the entire story to install his largest exhibition since his 2014 Guggenheim retrospective.