Average earnings growth for the 35-to-55 set is zero, the data shows. (Only the wealthiest workers see sustained increases throughout their career.) And things are even more grim for the lowest earners.
I thought this was possibly true for women on a mommy-track, as priorities shifted from career to family well-being, caring for children and elderly parents. But I have not previously considered that it may be true throughout the population, and for both genders.
permanence and totality of failure
Not so glum, chum! Think of resilience, "failure" as a regular part of learning, and top it off with
growth mindset.

Is this the point in the thread where I say that EARNINGS are not the only indicator of "success"? Yes, I do believe it's that point in the thread.
Agreed. Success or well-being can be a hallmark of positive growth in many directions/dimensions, of which financial well-being (or financial success) is just one.