My question more specifically is, how do Ti and Fe complement each other in a cognitive information processing sense? I never needed explaining of how Se and Ni worked together, that one was always just totally obvious to me, I also somewhat understand Te/Fi and Si/Ne but I don't truly get it about Ti and Fe.

PS: I'm fine with theoretical discussion about this, that's why I said above that I'm interested in the information processing aspect of how they complement each other, though real life examples are always welcome too!