>you have to be ready to jump to different kinds of roles in different kinds of organizations.

How did that work out in 1933?

There are limits to how much an economy can shake up before structural problems appear that means when the music stops there is no chair anywhere for you to sit in.

>At any moment in time there are growth areas in the economy

For bread line server?

Worse with the modern world you're not just competing with your neighbor, you're competing with the entire world and if the other parts of the world have lower costs you can quickly find yourself in a trap.