Has anyone made a mathematical model of that? I don't know what most of the words in it mean, in concrete terms.

It sounds like "we can make more than we want with less labour than we can supply." Is that accurate?

In scarcity, which has been all of history up to the present, everyone's strategy has been to get as much work as they can, make as much stuff as they can, and sell as much stuff as they can, in order to get as much stuff as they can in exchange. I can imagine that when half the workforce can make twice as much stuff as everyone wants, that may not work so well. But that's just a verbal story, and I don't trust those.