Why The Inca Empire Failed

Inca empire was the largest and most advanced empire in Pre-Columbian American. However, it was conquered by the Spanish lead by Francisso Pizarro in 1572. Within only 62 soldiers mounted on horses and 106 foot soldiers against 80,000 Incan soldiers, the Spaniard won and killed thousands of Incans. Also, the Inca emperor, Atahuallpa, was captured; the Spaniard received the largest ransom in history and killed Atahuallpa afterward. In my point of view that the Inca empire collapsed so fast during the battle against the Spanish are back the lack of technology and knowledge; even if Pizarro's attack had failed, it would still be the same end for Inca empire just with longer process for the Spanish.