My girlfriend is an INFJ with a strong Ti upbringing and I am an ENTP with a strong Fe upbringing. We were each what the other was striving to become, and now fit together like puzzle pieces. Not twins but enantiomers.
I mean people who share the same perceptive function are getting the same data from their environment, but the judgement processes differ (we sort that data differently.)
sensors get apples was my expressing envy at sensors for being able to "be in the moment"