Around 1500 European people were very intelligent and developed,

>>2538514
jungles suck

Necessity is the mother of invention. Natives had it too God for themselves to ever need to evolve. This is not a critique btw.

>>2538539
Too good*

Isolation from Eurasia.

It depends on where you live. The brazilians had the nature which gave them the necessary recources to live from. So if the nature(tropical forest) covers your needs, you have no need to evolve.
Look at Europe: No provider of needs -> have to work to keep yourself alive -> need to start to think for yourself -> ego push -> you have to evolve mentally or stategicly? to stay alive

>>2538530
/thread

They did have neat stuff and Terra Preta.

Why didn't the armies of huge ass Greenland sweep over the ocean and conquer everyone?

>>2538530
Jungles give good culture bonuses though if you research acoustics.

>>2538514
That's debatable, there's evidence that they had a better grasp of astronomy and certain mathematics at the time.

Also its has to do with resources as well.

>>2538514
need is the mother of invention
they had the minimum things that any human needs to survive and thrive before "dem white devils" came over the sea to meet them. Pair this with shitty jungle soil and insufferable humidity during warm months, and they really didn't have what it took to develop the way the Yuropoors did

>>2538514
Read Jared Diamond's book, "Guns, Germs And Steel", there whiten what you want to know.