That does not mean communism. No. It means to use all features of the natural structure called "graph" as opposed to a simple "tree".
That sounds like anarchism. And please, I do not mean chaos.
First off, it's been said that people only use 10% of their actual brain power. So 1 billion neurons probably isn't far off from what we would use anyway.
This is 100% false.
Mater artium necessitas. [Necessity is the mother of invention].