We all think and at an instinctual level I would be happy to define the INFP as a thinker. Think at Point Nine of the Enneagram.
INFP's do thinking well and utilise the T function much more than others give them credit for but the difficulty I see INFP's have is with avoiding conflict and seeking harmony. For the INFP thinking is narrowed down to the things that are comfortable and of interest and supportive of the would view the INFP holds. In the realm that the functions INP generate the INFP continuously thinks or observes witch is a form of thinking or cognitive activity, but generally speaking it is a personal orientated logic more than an impersonal logic orientation.
ENTP's energy is more focused from matters of the hart and service were as the INFP's energy is more focused within the instinctual and the control of anger and rage and the passion to mask the anger and rage is Sloth were as the passion that ENTP's and ENFP's have there difficulties with is Envy.
A Thinker you maybe but the energy I sore within the video had the thinking style of self preservation, in the sonics style maybe defined -Sx/Sp+ now that's INFP thinking to work such an analogy as ( -Sx/Sp+) witch is saying the Sx is more neutral or withheld and the Sp is more actively put forward positively active.
I myself am an INFP I will most likely not receive a nobel prize for that initiative advancement to the field of socionics I will most likely only receive hate posts for thinking out side of the square and conveying something complex in a simple understandable way.
Can you see the difference an INFP has difficulties with anger and fears and with not having Union with there peers within the environment they move within.
An ENTP or an INTP or an ENFP will simply assert there belief with out projecting a shadow of what they are feeling fear in relation to,, being the personal, thinkers and extroverts assert what whey confidently know as believed to be true. Extrovert and thinking are two different forms of impersonal, where as introversion and feeling are two forms the personal.
There are people who will argue that this is not strictly so but generally speaking the nuance of the energies of I and E and T and F kinda work that way and we all have all four work with in our stack of all eight functions.
View attachment 13706