"Homo economicus" is the hypothetical "perfectly economically rational" person that economic models often assume us all to be, despite the fact that we are demonstrably not perfectly rational.
we do live in the shadow of such modern demons: we call them "limited liability corporations." These are (potentially) immortal colony organisms that treat us fleshy humans as mere inconvenient gut flora. These artificial persons are not merely recognized as people under the law – they are given more rights than mere flesh-and-blood people. They seek to expand without limit, absorbing one another, covering the globe, acting in ways that are "economically rational" and utterly wicked. As Charlie Stross says, a corporation is a "slow AI"
Ted Chiang has proposed that when a corporate executive like Elon Musk claims to be terrified of AIs taking over, they're really talking about the repressed constant terror they feel because they are nominally in charge of a powerful artificial life-form (a corporation) that acts as though it has a mind of its own, in ways that are devastating to human beings
Great quote about the non-scarcity of ideas. Comparable to Thomas Jefferson's quote about candles.
If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.
In his book The Public Domain, the copyright scholar James Boyle talks about the political salience of the term "ecology." Boyle recounts how, prior to the rise of the word "ecology," there were many standalone issues, but no movement. Sure, you care about owls, and I care about the ozone layer, but what does the gaseous composition of the upper atmosphere have to do with the destiny of charismatic nocturnal avians?
https://thepublicdomain.org/thepublicdomain1.pdf
The term "ecology" welded all these thousands of issues together into a movement.