I always like to start writing with a couple of definitions in mind. A set of presuppositions, which may or may not be true, but hey that is the deal with any kind of creative or scientific endeavours - how many experiments started off with "let's prove X is dependent on Y" only to finish with "actually Y is dependent on X and Z". That is how new knowledge is created. Bear in mind, these definitions aren't the ones from the dictionary. No, sir/madam! These will serve as my starting point as I try to waddle through my own rambled thoughts.
Communist nature - what do I mean by that? Simply, shared/owned by everyone, rather than some or one. I am not well equipped to discuss communism nor do I intend to, I am simply asserting that there are things (wheel for example) that are commonly owned by our whole species and do not belong to any one corporation, company or individual.
Knowledge - well, I am too limited to explain the knowledge itself, but here I will narrow my scope to technological and philosophical kinds of knowledge. Everything from creating concrete, to printing press, to democracy as a political system. Yes, even capitalism falls into the category of knowledge. And by that, even capitalists can not argue that capitalism isn't owned by everyone, at least as an economical modus operandi. So, up yours capitalists - even precious capitalism is in its essence (knowledge), communist.