She meant impossible in that one doesn't earn a billion dollars through work alone. The only way to get there is to set up a structure that extracts a billion dollars from a market (usually by building a structure that's more efficient but also generates externalities that are not borne by the person getting the billion dollars). pg's reading of it is so blunt and misrepresentative that I'm nervous about what kind of…
Your phrase “extract” betrays a fundamental disagreement with what Paul is saying. (Externalities does so again) It assumes a zero-sum game where the job is to shift money from one person to another. Value, and thus money/wealth can be created. Literally. You are saying, in different words, that no one can do it “honestly”. He is saying one can.
Any discussion not grounded in those facts is a dishonest discussion. It is a zero sum game until those externalities change because ultimately our species is built upon extraction resources to produce wealth. It IS a zero sum game until you or someone else invents a means of solving the first order problems.