Programmer @ 67 –i believe the entire marxist theory would collapse –i know its lite version, the one Dems parrot when on the topic, would collapse if it had to identify 2nd derivatives rather than static snapshots. You were poor at the factory? How old were you, how long did you work there, why did you work there, what did it do for you, and what happened to you next, never enters the argument –only that job itself is looked at, in effect implying that you the personal individual are still there doing that same thing and will until gabriel blows his horn. Upward mobility, a huge capitalist fact, in fact almost by itself the justification of the model, is buried down deep at the bottom of the marxist memory hole.