It's impossible to know because we wouldn't have Ni.
Classic Ni-based answer *1
Originally Posted by Antisocial one
I would not notice since I would not exist.
Classic Ni-based answer *2
Originally Posted by paradigm-shift
Ni is the function of foresight so there wouldn't be any of that. People would be mindlessly living in the moment without any regards for future consequences.
Now THAT seems a bit extreme! I don't think that forseeable consequences are particularly an Ni function in any case. It's better at tackling a future which is unforseeable with respect to previous experience.
It would be a place with trial and error process of learning, it would be pure experimenting. I mean, I find myself using little Ni, but still need to experiment (before guesing, because many times I have guessed wrong) to know what the real stuff is, to contemplate all the options...
"Please don't have children, overpopulation is the real fuss of this world"-Composed by me...