After discovering myself as an INTP around two years ago, I came to a realization:
I ain't sure if this has a general scope encompassing a lot of INTPs but anyway...
A lot of INTPs could have lived in a very SJ environment. Maybe, in some cases, their family will see them as someone smart, eventually, they'll have high aspirations for that INTP person.
But then, the environment that the INTP will grow up in is more likely Te oriented (school, work, etc.). Not Ti, which pretty much defines the INTP's inherent primary asset.
Feelers (let's say, Fe oriented peeps) can easily avoid the Te environment later in life by having a developed interpersonal skills early, which can easily compensates the lack of Te (which is very demanded in the academic and the working world). A good interpersonal skill in a working environment (especially entry-level) can sometimes make up for a lack of work-extensive Te skill set.
INTPs, however, lack both Fe and Te, hence developing a sense of inadequacy, with only a strong intellectual Ti to cling to.
Eventually, some INTPs will discover MBTI and finally, for the first time in their lives, they're presented with the most 'sensible' framework for their personality.
Being able to discover and understand the framework, a young INTP can easily defend the merits of Ti. They don't need to fit into Te anymore.
I think this explains the territorial attitude in INTPc, for example. A framework has finally explained the INTP, and it has to be defended. Ti needs to be used as a rallying point.
Chances are, if you're a young INTP, and you never encountered MBTI, you'll end up grumpy. You sense something wrong with you (or the external environment), but can't exactly explain what it is. You probably know you're smart, but it doesn't do a lot.
A young INTP may rally for Ti to a certain extent (which is what we sometimes perceive as an unhealthy INTP), but is that something that can be rallied for in the long run?
There are many things that make Ne/Ti not that good as a rallying point.
1. Not a lot of sensors understand MBTI, and INTPs will continuously have a feeling of being misunderstood.
2. INTPs can't afford to be isolated to people forever because P doesn't present good work ethics that J does. At some point, there'll be forced extroversion for the INTP
What happened then, to older INTPs? What did they "mature" into? Did they develop their other cognitive skills, and are they INTPs still?
I'd basically want to know the opinion of older INTPs on this. Was there a deliberate decision to tweak your personality or is Ne/Ti a sustainable long term archetype, even i it may appear inherent?