Land began to be seen as something to be owned privately and exploited for private interests, and never was entirely reconciled with the old ideas that land should be utilized in common for the good of all.
If you write, one of the questions you're always trying to answer is, Where do you get your ideas? And, if you write, you know how pointless a question this is and how difficult it is to answer.
I do have a small collection of traditional SF ideas which I've never been able to sell. I'm known as a fantasy writer and neither my agent nor my editors want to risk my brand by jumping genre.
Neophyte writers tend to believe that there is something magical about ideas and that if they can just get a hold of a good one, then their futures are ensured.