WI Cortes hadn't experienced this terrible reverse in Tenochtitlan after Alvarado's massacre of the Aztec nobles and dancers, and Cortes' winning over of Narvaez' force ? How much sooner could Cortes' fortunes have been advantaged had he not needed to besiege the Aztecs in their capital and fight house-by-house to destroy the whole damn city for the next 2 yrs, and had he not lost so many men and weapons during the terrible retreat out of Tenochtitlan ?