Think about it. The more you learned about your brain the more complex it would become. Also I’m not sure we have enough capacity to reflect on ourselves by processing everything. Think about the massive complexity of every connection. Could someone actually process that or are we limited by ourselves?
If whatever learning meant +1 brain complexity then it we would never catch up because it would be the infinite hotel. example: learning one unit of brain complexity adds one unit of brain complexity.
if learning meant < +1 brain complexity, then the next limiters would be brain space and time. example: learning one unit of brain complexity slightly complicates an already existing complex.
if learning meant > +1 brain complexity, then the more you learn, the farther you get from understanding the whole thing. example: learning one unit of brain complexity requires the addition of another unit of brain complexity plus its relationship with other complexes.
Probably < 1 considering you can pick up on patterns, and learning a pattern generates 1 one structure while allowing you to understand many. The learned pattern itself is likely stored within another pattern. You likely won’t be able to know everything within the brain at once, but you might be able to know anything you want inside it.
It’d be like memorizing every book in a library versus going through a library catalog to get what you need.