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…
I don't think anyone reading PG's blog is clueless about the power of compounding or the difference between salary and wealth through asset growth.
Her point is essentially whether the entire capital system is "fair." And to be fair to PG I don't think AOC articulated a particularly strong point either.