Sphere of Knowledge

I haven't posted much philosophy lately.

Upon talking with a friend of mine (as it seems all of my ideas come from these days), I brought an old theory of mine that deals with the knowledge of the human mind. I had completely forgotten how invigorating talk concerning the human mind can be. There is so much left to be discovered; the mystery of how our own minds work may forever be unknown. Theories may spawn, small surges of knowledge may surface, but it is a long time until we are able to uncover the astronomical workings of our own thought and consciousness. But is it too much for humanity to ever know? Will humanity ever learn the secrets that lie within each and every one of us? It is this barrier that leads me to theorize:

Is human consciousness purposely limited in its knowledge capacity?

I like to think of this as my own theory, but on that note, there may be similarities in other theories or maybe even a duplicate of this theory. If that is the case, I have no knowledge of it, but it surely came before any of my theories. Just a quick disclaimer before going on. Anyhow, much of this theory is based upon the limitations of the brain itself. Whereas it is untrue that the brain only uses 10% of its capacity, it is true that the entirety of the brain's functions are not all constantly firing. Why is it that the brain is limited to certain sections in certain situations? What are the possibilities of full brain usage at one particular instance, and what restricts such possibilities? Such activity is exhibited in those with particular types of autism. Incredible feats can be performed because of this diagnosis, photographic memory and phenomenal intelligence. Could this perhaps be the result of a higher brain capacity?

This is where my theory comes into play.

I feel that the brain is limited intentionally within all normally functioning humans. This limitation of knowledge covers everything within our particular "Sphere of Knowledge" held within the brain. That being said, these spheres allow information to be conceived to a certain barrier, that being the circumference of the sphere. Upon the quest for knowledge concerning matters including but not limited to the existence of the universe, mankind's origins, and the afterlife, our own spheres prevent our consciousness from answers. Why is this? I believe that it is our own consciousness protecting us from knowledge that is meant to be unknown. The answers that lie ahead may be so unfathomably groundbreaking that humanity is simply not meant to discover it. Perhaps, breaking the barrier or attempting to break the barrier of the Sphere of Knowledge can also influence negativity or depression, holding knowledge that is much more monumental than mankind itself. It's a thought.

Or maybe I'm thinking too much.