European technology was just that much more advanced. It's like joining a game of Civ around turn 60 when your opponents have already researched, traded, and di

European technology was just that much more advanced. It's like joining a game of Civ around turn 60 when your opponents have already researched, traded, and discovered a bunch of tech. When your civilizations meet you will just not have a chance. The whole mediterranean was a meeting grounds for dozens of civilizations, if not more, where for millenia people traded goods and technologies. It was really a matter of luck that the ancestors of the Aztecs picked a far away land that was tough to farm and little animals to domesticate, and no one else around to share information with.