That's a very good explanation you got there

Thanks for that, I've been trying to figure out these cognitive functions forever but theory is hard for me to understand, you made it quite easy there.
Makes a lot of sense.
Now I understand why my sister (strong Fi) and I (strong Ti) butt heads all the time. She expresses her feelings all the time, and I try to help her with logical solutions (lol) and it only makes her mad. Where I explain to her my thoughts (like..this makes no sense) and she thinks I'm complaining therefore she thinks i'm sad or mad and tries to help me figure out my feelings (lol)...
I argue with Te users all the time, even if I agree with what they're saying, if I ask them why they think that, the usual response is "because that's just the way it is"... or "just do it, it's more efficient" or whatever... but they seem to leave out the fact that what works for them might not work for me...
Now I understand what it means when they say "Ti does what makes sense to them"...
A fight between me and a "Te" friend:
Te: "if you don't wake up early that means you're lazy"
Ti: "why? I stay up late, so I'm up the same amount of hours as you"
Te: "your brain works better in the morning, ask doctors"
Ti: "I actually work better in the evening. That's just how I am"
Te: "That's just an excuse for your laziness"
lol. true story... only that argument went on for about an hour, needless to say no one convinced the other of anything.