I vaguely recall believing I "owned" my ideas. I don't know if that was nature or nurture. I have since realized that ideas do not happen in isolation. Independent co-invention is common when conditions are just right. There was I time when was about 5 that I thought I invented the word "okey-dokey." It turns out that when trying to come up with a non-sense word, I simply came up with one I had probably heard about once or twice before.
Great insight. You are backed up philosophically by Wittgenstein when he said that there is no
private language - and by Chomsky, by implication, in his ideas of how we acquire language.
Its the denial of these inherently social aspects of being a human being that annoys me. Leads to all sort of problems. Annoys me to see people riding off the back of that which they are garnering from us all - and then denying it.
Re. land ownership. I don't have much time just now, so I'll only say one word -
Allotment