Ni is concerned with the flow of time. NiFe is quite adept at using Ti; NiTe is quite adept at using Fi
"So when we talk about Ni being about predicting the future, what will happen, etc., we're really talking about reading signs, figuring out what the meaning is going to be."
I have a feeling this is not the case; they first seek to define a term, then they use Ti to understand how these terms fit into the scheme of things or the flow of things. Odd words that have no meaning strike a very odd reaction with IEI, for example the made up word like "bearspewingmagigi";
I have observed the tendency to for them to tie words to actions (you say this, yet you do that; if you're going to say this then at least do that...this is where predictions come in.)
looking for consistancies between actions and words.
"He doesn't do this, so why should you do that?" They try to find universal laws that govern Ti? Detailed study of one of the parameters of the external world.