As much as I'd love to claim him as one of my own, no, Jordan Peterson is all Ni all the way. He has this implicit trust in symbolism. Ne pulls from images in the form of Si, sure, but it doesn't think in symbols. Think of Si as experiences and senses photographed into your brain. You record what happened, and how you felt about what happened. But there is no pattern extraction or symbolism involved. It's just that, a recorded image. Everyone springboards from existing ideas. It's impossible not to, simply by being exposed to the world at all. The Fe/Ti conflict happens in everyone on the Fe/Ti axis who wants to convey an idea to an audience. If anything the active resisting to people please points to a slight nudge towards Fe over Ti. (You see this in its most extreme form in ENFJs, wanting to make an idea as accessible as possible while trying not to simplify/distort it too much. You see the complete opposite in INTPs, wanting to keep an idea as truthful as possible, while still trying to get the point across.) As for what you noticed in his tone of voice and enthusiasm faltering if there is no back and forth.. that too speaks to Fe, rather than Ne. An xNTP will get more and more enthusiastic the longer they ramble about their subjects of knowledge or interest. His accuracy actually leaves a bit to be desired. Hostarius summed it up quite nicely: This gives my Ti a nosebleed. In fact, this is the sort of thing that causes your average xNTP to take a step back, shut their mouth, re-evaluate, and possibly even throw out their entire framework. I'm still voting for ENFJ. He seems to use his Ni as a 'good parent' function, which is how the auxiliary is used; he 'instructs' others in the world of Ni. "This is how you should see it." That is unlike INFJs, who use Ni more as "This is how you can see it." The vision vs My vision. He even wrote a book called "12 rules for life". Pulling from Berens' Interaction Styles, that's as directing as it gets.