I mean that the fact Europeans figured out how to build and navigate ships to the Americas before vice versa happened doesn't mean the Native Americans were inherently stupid. I just phrased it really really wrong. Had they not been colonized upon, in enough time, they would've figured out the scientific method, and urbanization/industrialization too.
That's another reason why the Noble Savage fallacy is just that, had N. America remained isolated from outside influence, tribal lifestyle would still have eventually ceased to exist because technological advancement would've obsoleted it, and Natives would not have stuck to the "old ways" like some kind of real-life race of elves who live in harmony with nature.. if given the chance to reduce infant mortality, extend life expectancy and grow food to abundance, EVERY society TAKES it, history has proven it.
Any sufficiently large population will produce smart people in enough abundance to make technological advancements.