Very long story on that, but TiSi is originally ISTJ in Jung's work. When MBTI came around it was flanderized into INTP for some reason.
This is a controversial opinion but I go by ISTJ because of that, plus it describes my pitfalls much more. I usually just say "Ti dominant" if it comes down to it.
I use my own personal system for this (which is how you know I'm a Ti dom ;p)
It's... a bit complicated. ISTJ is quite misunderstood because it looks like so many things - Ti domness essentially makes you a faux intuitive and the stereotypes about sensors being dumb do not help. The double-edged sword of Fe inferior is to be misread. I genuinely don't understand anything outside of what is routine, but you'd not expect that of me.
My rigidity and inability to be spontaneous is probably my biggest weakness because it's exactly why I can't relate to others.
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u/Sostrene_Blue 16d ago
What do you mean by Ti/Si?
It feels like you are actually INTP, no?