Difference Theory

I have a theory on the difference between people, between intelligence, between everything.
That people, or at least most people, choose their state of mind. To have an active or dormant thinking process. To be overlearned in somethings and not so much in others. To be in mental freefall or to have control. I've come to the realization that I have a mental-control complex. That I will not allow my mind to go into freefall as long as I can help it. More-so that I'm afraid of losing the one power I have cherished my entire life, my ability to think in more than just linear or lateral motion. I'm not actually sure if thats how I think though. Since I've never been inside anybody else's head except my own. I've come close, and from what I learned.. So far, some select people show this non-linear thought process. Most do not. Thats pretty much the only true difference I've been able to draw between people. Baring the more extreme cases, most people think along the same lines. Similar people tend to stay together, and dissimilar people will stay together for a while only to destroy each other after a certain time. This kind of circles around my intelligence theory.
Is that what intelligence is? Having a multi-thread processing brain?
That one I've still to this day not been able to put a label on. But indeed the concept of multiple intelligences appeals to me. Anyway, thats a totally different tangent to run off onto.